Update changelog (#82)

* FIX(1.6.1,1.7.1.x): check if apparmor and grub is installed

* FIX(2.2.15): check package install

* FIX(4.2.x): check package install

* FIX(5.1.x): check crontab files exist

* FIX(5.2.1): check package install

* FIX(99.3.3.x): check conf file exist

* Remove useless SUDO_CMD

* Deal with non existant /run/shm

* Replace exit code 128 by exit code 2

fix #65

Co-authored-by: GoldenKiwi <thibault.dewailly@corp.ovh.com>

.github/workflows/compile-manual.yml

@@ -10,7 +10,7 @@ jobs:
         uses: actions/checkout@v2
       - name: Produce debian man
         run: 'docker run --rm --volume "`pwd`:/data" --user `id -u`:`id -g` pandoc/latex:2.6 MANUAL.md -s -t man > debian/cis-hardening.8'
-      - uses: EndBug/add-and-commit@v6
+      - uses: EndBug/add-and-commit@v7
         with:
           add: 'debian/cis-hardening.8'
           message: 'Regenerate man pages (Github action)'

.github/workflows/functionnal-tests.yml

@@ -18,3 +18,10 @@ jobs:
         uses: actions/checkout@v2
       - name: Run the tests debian10
         run: ./tests/docker_build_and_run_tests.sh debian10
+  functionnal-tests-docker-debian11:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+      - name: Run the tests debian11
+        run: ./tests/docker_build_and_run_tests.sh debian11

.github/workflows/pre-release.yml

@@ -21,7 +21,7 @@ jobs:
           find ../ -name "*.deb" -exec mv {} cis-hardening.deb \;
       # DELETE THE TAG NAMED LATEST AND THE CORRESPONDING RELEASE
       - name: Delete the tag latest and the release latest
-        uses: dev-drprasad/delete-tag-and-release@v0.1.2
+        uses: dev-drprasad/delete-tag-and-release@v0.1.3
         with:
           delete_release: true
           tag_name: latest

.github/workflows/shellcheck_and_shellfmt.yml

@@ -4,19 +4,26 @@ on:
   - push
   - pull_request
 jobs:
-  sh-checker:
+  shellfmt:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
         uses: actions/checkout@v2
       - name: Run the sh-checker
-        uses: luizm/action-sh-checker@v0.1.10
+        uses: luizm/action-sh-checker@v0.1.12
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # Optional if sh_checker_comment is false.
-          SHELLCHECK_OPTS: --color=always --shell=bash -x --source-path=SCRIPTDIR # Optional: exclude some shellcheck warnings.
           SHFMT_OPTS: -l -i 4 -w # Optional: pass arguments to shfmt.
         with:
+          sh_checker_shellcheck_disable: true
           sh_checker_comment: true
           sh_checker_exclude: |
                               src/
                               debian/postrm
+  shellcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+      - name: Run shellcheck
+        run: ./shellcheck/docker_build_and_run_shellcheck.sh

.github/workflows/tagged-release.yml

@@ -35,7 +35,7 @@ jobs:
           find ../ -name "*.deb" -exec mv {} cis-hardening.deb \;
       # DELETE THE TAG NAMED LATEST AND THE CORRESPONDING RELEASE
       - name: Delete the tag latest and the release latest
-        uses: dev-drprasad/delete-tag-and-release@v0.1.2
+        uses: dev-drprasad/delete-tag-and-release@v0.1.3
         with:
           delete_release: true
           tag_name: latest

MANUAL.md

@@ -115,11 +115,20 @@ will create a timestamped backup in this directory.
     the -n option instructs sudo not to prompt for a password.
     Finally note that `--sudo` mode only works for audit mode.
 
+`--set-log-level=level`
+:   This option sets LOGLEVEL, you can choose : info, warning, error, ok, debug.
+    Default value is : info
+
 `--batch`
 :   While performing system audit, this option sets LOGLEVEL to 'ok' and
     captures all output to print only one line once the check is done, formatted like :
     OK|KO OK|KO|WARN{subcheck results} [OK|KO|WARN{...}]
 
+`--allow-unsupported-distribution`
+    Must be specified manually in the command line to allow the run on non compatible
+    version or distribution. If you want to mute the warning change the LOGLEVEL
+    in /etc/hardening.cfg
+
 
 # AUTHORS
 

README.md

@@ -1,7 +1,7 @@
 # :lock: CIS Debian 9/10 Hardening
 
-:tada: **News**: this projet is back in the game and is from now on maintained. Be free to use and to
+:tada: **News**: this project is back in the game and is from now on maintained. Be free to use and to
-report issues if you find any !
+report issues if you find any!
 
 
 <p align="center">
@@ -44,7 +44,7 @@ hardening [INFO] Treating /opt/cis-hardening/bin/hardening/6.2.19_check_duplicat
 $ git clone https://github.com/ovh/debian-cis.git && cd debian-cis
 $ cp debian/default /etc/default/cis-hardening
 $ sed -i "s#CIS_ROOT_DIR=.*#CIS_ROOT_DIR='$(pwd)'#" /etc/default/cis-hardening
-$ bin/hardening/1.1_install_updates.sh --audit-all
+$ bin/hardening/1.1.1.1_disable_freevxfs.sh --audit-all
 hardening                 [INFO] Treating /opt/cis-hardening/bin/hardening/1.1.1.1_disable_freevxfs.sh
 1.1.1.1_disable_freevxfs  [INFO] Working on 1.1.1.1_disable_freevxfs
 1.1.1.1_disable_freevxfs  [INFO] [DESCRIPTION] Disable mounting of freevxfs filesystems.
@@ -117,9 +117,16 @@ to allow a certain kind of services on the machine, such as http, mail, etc.
 Can be specified multiple times to allow multiple services.
 Use --allow-service-list to get a list of supported services.
 
+``--set-log-level <level>``: This option sets LOGLEVEL, you can choose : info, warning, error, ok, debug.
+Default value is : info
+
 ``--create-config-files-only``: create the config files in etc/conf.d. Must be run as root,
 before running the audit with user secaudit, to have the rights setup well on the conf files.
 
+``--allow-unsupported-distribution``: must be specified manually in the command line to allow 
+the run on non compatible version or distribution. If you want to mute the warning change the
+LOGLEVEL in /etc/hardening.cfg
+
 ## :computer: Hacking
 
 **Getting the source**

bin/hardening.sh

@@ -26,6 +26,8 @@ ALLOW_SERVICE_LIST=0
 SET_HARDENING_LEVEL=0
 SUDO_MODE=''
 BATCH_MODE=''
+ASK_LOGLEVEL=''
+ALLOW_UNSUPPORTED_DISTRIBUTION=0
 
 usage() {
     cat <<EOF
@@ -98,11 +100,20 @@ OPTIONS:
         the '-n' option instructs sudo not to prompt for a password.
         Finally note that '--sudo' mode only works for audit mode.
 
+    --set-log-level <level>
+        This option sets LOGLEVEL, you can choose : info, warning, error, ok, debug.
+        Default value is : info
+
     --batch
         While performing system audit, this option sets LOGLEVEL to 'ok' and
         captures all output to print only one line once the check is done, formatted like :
         OK|KO OK|KO|WARN{subcheck results} [OK|KO|WARN{...}]
     
+    --allow-unsupported-distribution
+        Must be specified manually in the command line to allow the run on non compatible
+        version or distribution. If you want to mute the warning change the LOGLEVEL
+        in /etc/hardening.cfg
+
 EOF
     exit 0
 }
@@ -143,6 +154,10 @@ while [[ $# -gt 0 ]]; do
         SET_HARDENING_LEVEL="$2"
         shift
         ;;
+    --set-log-level)
+        ASK_LOGLEVEL=$2
+        shift
+        ;;
     --only)
         TEST_LIST[${#TEST_LIST[@]}]="$2"
         shift
@@ -152,7 +167,10 @@ while [[ $# -gt 0 ]]; do
         ;;
     --batch)
         BATCH_MODE='--batch'
-        LOGLEVEL=ok
+        ASK_LOGLEVEL=ok
+        ;;
+    --allow-unsupported-distribution)
+        ALLOW_UNSUPPORTED_DISTRIBUTION=1
         ;;
     -h | --help)
         usage
@@ -179,16 +197,53 @@ if [ -z "$CIS_ROOT_DIR" ]; then
     echo "Cannot source CIS_ROOT_DIR variable, aborting."
     exit 128
 fi
-# shellcheck source=../lib/constants.sh
+
-[ -r "$CIS_ROOT_DIR"/lib/constants.sh ] && . "$CIS_ROOT_DIR"/lib/constants.sh
 # shellcheck source=../etc/hardening.cfg
 [ -r "$CIS_ROOT_DIR"/etc/hardening.cfg ] && . "$CIS_ROOT_DIR"/etc/hardening.cfg
+if [ "$ASK_LOGLEVEL" ]; then LOGLEVEL=$ASK_LOGLEVEL; fi
 # shellcheck source=../lib/common.sh
 [ -r "$CIS_ROOT_DIR"/lib/common.sh ] && . "$CIS_ROOT_DIR"/lib/common.sh
 # shellcheck source=../lib/utils.sh
 [ -r "$CIS_ROOT_DIR"/lib/utils.sh ] && . "$CIS_ROOT_DIR"/lib/utils.sh
+# shellcheck source=../lib/constants.sh
+[ -r "$CIS_ROOT_DIR"/lib/constants.sh ] && . "$CIS_ROOT_DIR"/lib/constants.sh
 
-if [ "$BATCH_MODE" ]; then MACHINE_LOG_LEVEL=3; fi
+# If we're on a unsupported platform and there is no flag --allow-unsupported-distribution
+# print warning, otherwise quit
+
+if [ "$DISTRIBUTION" != "debian" ]; then
+    echo "Your distribution has been identified as $DISTRIBUTION which is not debian"
+    if [ "$ALLOW_UNSUPPORTED_DISTRIBUTION" -eq 0 ]; then
+        echo "If you want to run it anyway, you can use the flag --allow-unsupported-distribution"
+        echo "Exiting now"
+        exit 100
+    elif [ "$ALLOW_UNSUPPORTED_DISTRIBUTION" -eq 0 ] && [ "$MACHINE_LOG_LEVEL" -ge 2 ]; then
+        echo "Be aware that the result given by this set of scripts can give you a false feedback of security on unsupported distributions !"
+        echo "You can deactivate this message by setting the LOGLEVEL variable in /etc/hardening.cfg"
+    fi
+else
+    if [ "$DEB_MAJ_VER" = "sid" ] || [ "$DEB_MAJ_VER" -gt "$HIGHEST_SUPPORTED_DEBIAN_VERSION" ]; then
+        echo "Your debian version is too recent and is not supported yet because there is no official CIS PDF for this version yet."
+        if [ "$ALLOW_UNSUPPORTED_DISTRIBUTION" -eq 0 ]; then
+            echo "If you want to run it anyway, you can use the flag --allow-unsupported-distribution"
+            echo "Exiting now"
+            exit 100
+        elif [ "$ALLOW_UNSUPPORTED_DISTRIBUTION" -eq 0 ] && [ "$MACHINE_LOG_LEVEL" -ge 2 ]; then
+            echo "Be aware that the result given by this set of scripts can give you a false feedback of security on unsupported distributions !"
+            echo "You can deactivate this message by setting the LOGLEVEL variable in /etc/hardening.cfg"
+        fi
+    elif [ "$DEB_MAJ_VER" -lt "$SMALLEST_SUPPORTED_DEBIAN_VERSION" ]; then
+        echo "Your debian version is deprecated and is no more maintained. Please upgrade to a supported version."
+        if [ "$ALLOW_UNSUPPORTED_DISTRIBUTION" -eq 0 ]; then
+            echo "If you want to run it anyway, you can use the flag --allow-unsupported-distribution"
+            echo "Exiting now"
+            exit 100
+        elif [ "$ALLOW_UNSUPPORTED_DISTRIBUTION" -eq 0 ] && [ "$MACHINE_LOG_LEVEL" -ge 2 ]; then
+            echo "Be aware that the result given by this set of scripts can give you a false feedback of security on unsupported distributions, especially on deprecated ones !"
+            echo "You can deactivate this message by setting the LOGLEVEL variable in /etc/hardening.cfg"
+        fi
+    fi
+fi
 
 # If --allow-service-list is specified, don't run anything, just list the supported services
 if [ "$ALLOW_SERVICE_LIST" = 1 ]; then
@@ -294,7 +349,7 @@ if [ "$BATCH_MODE" ]; then
     BATCH_SUMMARY+="RUN_CHECKS:${TOTAL_TREATED_CHECKS:-0} "
     BATCH_SUMMARY+="TOTAL_CHECKS_AVAIL:${TOTAL_CHECKS:-0}"
     if [ "$TOTAL_TREATED_CHECKS" != 0 ]; then
-        CONFORMITY_PERCENTAGE=$(bc -l <<<"scale=2; ($PASSED_CHECKS/$TOTAL_TREATED_CHECKS) * 100")
+        CONFORMITY_PERCENTAGE=$(div $((PASSED_CHECKS * 100)) $TOTAL_TREATED_CHECKS)
         BATCH_SUMMARY+=" CONFORMITY_PERCENTAGE:$(printf "%s" "$CONFORMITY_PERCENTAGE")"
     else
         BATCH_SUMMARY+=" CONFORMITY_PERCENTAGE:N.A" # No check runned, avoid division by 0
@@ -307,8 +362,8 @@ else
     printf "%30s [ %7s ]\n" "Total Passed Checks :" "$PASSED_CHECKS/$TOTAL_TREATED_CHECKS"
     printf "%30s [ %7s ]\n" "Total Failed Checks :" "$FAILED_CHECKS/$TOTAL_TREATED_CHECKS"
 
-    ENABLED_CHECKS_PERCENTAGE=$(bc -l <<<"scale=2; ($TOTAL_TREATED_CHECKS/$TOTAL_CHECKS) * 100")
+    ENABLED_CHECKS_PERCENTAGE=$(div $((TOTAL_TREATED_CHECKS * 100)) $TOTAL_CHECKS)
-    CONFORMITY_PERCENTAGE=$(bc -l <<<"scale=2; ($PASSED_CHECKS/$TOTAL_TREATED_CHECKS) * 100")
+    CONFORMITY_PERCENTAGE=$(div $((PASSED_CHECKS * 100)) $TOTAL_TREATED_CHECKS)
     printf "%30s %s %%\n" "Enabled Checks Percentage :" "$ENABLED_CHECKS_PERCENTAGE"
     if [ "$TOTAL_TREATED_CHECKS" != 0 ]; then
         printf "%30s %s %%\n" "Conformity Percentage :" "$CONFORMITY_PERCENTAGE"

bin/hardening/1.1.1.1_disable_freevxfs.sh

@@ -17,28 +17,36 @@ HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Disable mounting of freevxfs filesystems."
 
-# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
-
 KERNEL_OPTION="CONFIG_VXFS_FS"
 MODULE_NAME="freevxfs"
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
+        ok "Container detected, consider host enforcing or disable this check!"
+    else
         is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
         if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
-        crit "$KERNEL_OPTION is enabled!"
+            crit "$MODULE_NAME is enabled!"
         else
-        ok "$KERNEL_OPTION is disabled"
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    is_kernel_option_enabled "$KERNEL_OPTION"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        warn "I cannot fix $KERNEL_OPTION enabled, recompile your kernel please"
+        ok "Container detected, consider host enforcing!"
     else
-        ok "$KERNEL_OPTION is disabled, nothing to do"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 

bin/hardening/1.1.1.2_disable_jffs2.sh

@@ -17,28 +17,36 @@ HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Disable mounting of jffs2 filesystems."
 
-# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
-
 KERNEL_OPTION="CONFIG_JFFS2_FS"
 MODULE_NAME="jffs2"
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        crit "$KERNEL_OPTION is enabled!"
+        ok "Container detected, consider host enforcing or disable this check!"
     else
-        ok "$KERNEL_OPTION is disabled"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME" "($MODULE_NAME|install)"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            crit "$MODULE_NAME is enabled!"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    is_kernel_option_enabled "$KERNEL_OPTION"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        warn "I cannot fix $KERNEL_OPTION enabled, recompile your kernel please"
+        ok "Container detected, consider host enforcing!"
     else
-        ok "$KERNEL_OPTION is disabled, nothing to do"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME" "($MODULE_NAME|install)"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 

bin/hardening/1.1.1.3_disable_hfs.sh

@@ -17,28 +17,36 @@ HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Disable mounting of hfs filesystems."
 
-# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
-
 KERNEL_OPTION="CONFIG_HFS_FS"
-MODULE_FILE="hfs"
+MODULE_NAME="hfs"
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_FILE"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        crit "$KERNEL_OPTION is enabled!"
+        ok "Container detected, consider host enforcing or disable this check!"
     else
-        ok "$KERNEL_OPTION is disabled"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            crit "$MODULE_NAME is enabled!"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    is_kernel_option_enabled "$KERNEL_OPTION"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        warn "I cannot fix $KERNEL_OPTION enabled, recompile your kernel please"
+        ok "Container detected, consider host enforcing!"
     else
-        ok "$KERNEL_OPTION is disabled, nothing to do"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 

bin/hardening/1.1.1.4_disable_hfsplus.sh

@@ -17,28 +17,36 @@ HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Disable mounting of hfsplus filesystems."
 
-# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
-
 KERNEL_OPTION="CONFIG_HFSPLUS_FS"
-MODULE_FILE="hfsplus"
+MODULE_NAME="hfsplus"
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_FILE"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        crit "$KERNEL_OPTION is enabled!"
+        ok "Container detected, consider host enforcing or disable this check!"
     else
-        ok "$KERNEL_OPTION is disabled"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            crit "$MODULE_NAME is enabled!"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    is_kernel_option_enabled "$KERNEL_OPTION"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        warn "I cannot fix $KERNEL_OPTION enabled, recompile your kernel please"
+        ok "Container detected, consider host enforcing!"
     else
-        ok "$KERNEL_OPTION is disabled, nothing to do"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 

bin/hardening/1.1.1.5_disable_squashfs.sh

@@ -17,31 +17,37 @@ HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Disable mounting of squashfs filesytems."
 
-# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
-
 KERNEL_OPTION="CONFIG_SQUASHFS"
-MODULE_FILE="squashfs"
+MODULE_NAME="squashfs"
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_FILE"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        crit "$KERNEL_OPTION is enabled!"
+        ok "Container detected, consider host enforcing or disable this check!"
     else
-        ok "$KERNEL_OPTION is disabled"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME" "($MODULE_NAME|install)"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            crit "$MODULE_NAME is enabled!"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
-    :
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    is_kernel_option_enabled "$KERNEL_OPTION"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        warn "I cannot fix $KERNEL_OPTION enabled, recompile your kernel please"
+        ok "Container detected, consider host enforcing!"
     else
-        ok "$KERNEL_OPTION is disabled, nothing to do"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME" "($MODULE_NAME|install)"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
-    :
 }
 
 # This function will check config parameters required

bin/hardening/1.1.1.6_disable_udf.sh

@@ -17,28 +17,36 @@ HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Disable mounting of udf filesystems."
 
-# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
-
 KERNEL_OPTION="CONFIG_UDF_FS"
-MODULE_FILE="udf"
+MODULE_NAME="udf"
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_FILE"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        crit "$KERNEL_OPTION is enabled!"
+        ok "Container detected, consider host enforcing or disable this check!"
     else
-        ok "$KERNEL_OPTION is disabled"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME" "($MODULE_NAME|install)"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            crit "$MODULE_NAME is enabled!"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    is_kernel_option_enabled "$KERNEL_OPTION"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        warn "I cannot fix $KERNEL_OPTION enabled, recompile your kernel please"
+        ok "Container detected, consider host enforcing!"
     else
-        ok "$KERNEL_OPTION is disabled, nothing to do"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME" "($MODULE_NAME|install)"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 

bin/hardening/1.1.1.7_restrict_fat.sh

@@ -24,6 +24,7 @@ MODULE_FILE="vfat"
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    # TODO check if uefi enabled if yes check if only boot partition use FAT
     is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_FILE"
     if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
         crit "$KERNEL_OPTION is enabled!"

bin/hardening/1.1.15_run_shm_nodev.sh

@@ -24,7 +24,11 @@ OPTION="nodev"
 # This function will be called if the script status is on enabled / audit mode
 audit() {
     info "Verifying that $PARTITION is a partition"
+    if [ -e "$PARTITION" ]; then
         PARTITION=$(readlink -e "$PARTITION")
+    else
+        PARTITION="/dev/shm"
+    fi
     FNRET=0
     is_a_partition "$PARTITION"
     if [ "$FNRET" -gt 0 ]; then

bin/hardening/1.1.16_run_shm_nosuid.sh

@@ -24,7 +24,11 @@ OPTION="nosuid"
 # This function will be called if the script status is on enabled / audit mode
 audit() {
     info "Verifying that $PARTITION is a partition"
+    if [ -e "$PARTITION" ]; then
         PARTITION=$(readlink -e "$PARTITION")
+    else
+        PARTITION="/dev/shm"
+    fi
     FNRET=0
     is_a_partition "$PARTITION"
     if [ "$FNRET" -gt 0 ]; then

bin/hardening/1.1.17_run_shm_noexec.sh

@@ -24,7 +24,11 @@ OPTION="noexec"
 # This function will be called if the script status is on enabled / audit mode
 audit() {
     info "Verifying that $PARTITION is a partition"
+    if [ -e "$PARTITION" ]; then
         PARTITION=$(readlink -e "$PARTITION")
+    else
+        PARTITION="/dev/shm"
+    fi
     FNRET=0
     is_a_partition "$PARTITION"
     if [ "$FNRET" -gt 0 ]; then

bin/hardening/1.1.23_disable_usb_storage.sh

@@ -20,25 +20,35 @@ DESCRIPTION="Disable USB storage."
 # Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
 
 KERNEL_OPTION="CONFIG_USB_STORAGE"
-MODULE_FILE="usb-storage"
+MODULE_NAME="usb-storage"
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_FILE"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        crit "$KERNEL_OPTION is enabled!"
+        ok "Container detected, consider host enforcing or disable this check!"
     else
-        ok "$KERNEL_OPTION is disabled"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            crit "$MODULE_NAME is enabled!"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    is_kernel_option_enabled "$KERNEL_OPTION"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
-    if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
-        warn "I cannot fix $KERNEL_OPTION enabled, recompile your kernel please"
+        ok "Container detected, consider host enforcing!"
     else
-        ok "$KERNEL_OPTION is disabled, nothing to do"
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
     fi
 }
 

bin/hardening/1.5.1_bootloader_ownership.sh

@@ -66,22 +66,22 @@ check_config() {
     is_pkg_installed "grub-pc"
     if [ "$FNRET" != 0 ]; then
         warn "Grub is not installed, not handling configuration"
-        exit 128
+        exit 2
     fi
     does_user_exist "$USER"
     if [ "$FNRET" != 0 ]; then
         crit "$USER does not exist"
-        exit 128
+        exit 2
     fi
     does_group_exist "$GROUP"
     if [ "$FNRET" != 0 ]; then
         crit "$GROUP does not exist"
-        exit 128
+        exit 2
     fi
     does_file_exist "$FILE"
     if [ "$FNRET" != 0 ]; then
         crit "$FILE does not exist"
-        exit 128
+        exit 2
     fi
 }
 

bin/hardening/1.5.2_bootloader_password.sh

@@ -51,7 +51,6 @@ apply() {
     else
         ok "$PWD_PATTERN is present in $FILE"
     fi
-    :
 }
 
 # This function will check config parameters required
@@ -59,11 +58,11 @@ check_config() {
     is_pkg_installed "grub-pc"
     if [ "$FNRET" != 0 ]; then
         warn "grub-pc is not installed, not handling configuration"
-        exit 128
+        exit 2
     fi
     if [ "$FNRET" != 0 ]; then
         crit "$FILE does not exist"
-        exit 128
+        exit 2
     fi
 }
 

bin/hardening/1.5.3_root_password.sh

@@ -38,7 +38,6 @@ apply() {
     else
         ok "$PATTERN is not present in $FILE"
     fi
-    :
 }
 
 # This function will check config parameters required

bin/hardening/1.6.1_enable_nx_support.sh

@@ -35,6 +35,9 @@ nx_supported_and_enabled() {
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        ok "Container detected, cannot read dmesg!"
+    else
         does_pattern_exist_in_dmesg "$PATTERN"
         if [ "$FNRET" != 0 ]; then
             nx_supported_and_enabled
@@ -46,10 +49,14 @@ audit() {
         else
             ok "$PATTERN is present in dmesg"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        ok "Container detected, cannot read dmesg!"
+    else
         does_pattern_exist_in_dmesg "$PATTERN"
         if [ "$FNRET" != 0 ]; then
             nx_supported_and_enabled
@@ -61,6 +68,7 @@ apply() {
         else
             ok "$PATTERN is present in dmesg"
         fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/1.6.4_restrict_core_dumps.sh

@@ -29,7 +29,7 @@ audit() {
     LIMIT_FILES=""
     if $SUDO_CMD [ -d "$LIMIT_DIR" ]; then
         for file in $($SUDO_CMD ls "$LIMIT_DIR"/*.conf 2>/dev/null); do
-            LIMIT_FILES="$LIMIT_FILES $LIMIT_DIR/$file"
+            LIMIT_FILES="$LIMIT_FILES $file"
         done
     fi
     debug "Files to search $LIMIT_FILE $LIMIT_FILES"

bin/hardening/1.7.1.2_enable_apparmor.sh

@@ -21,15 +21,27 @@ PACKAGES='apparmor apparmor-utils'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    ERROR=0
     for PACKAGE in $PACKAGES; do
         is_pkg_installed "$PACKAGE"
         if [ "$FNRET" != 0 ]; then
             crit "$PACKAGE is absent!"
+            ERROR=1
         else
             ok "$PACKAGE is installed"
         fi
     done
 
+    if [ "$ERROR" = 0 ]; then
+        is_pkg_installed "grub-pc"
+        if [ "$FNRET" != 0 ]; then
+            if [ "$IS_CONTAINER" -eq 1 ]; then
+                ok "Grub is not installed in container"
+            else
+                warn "Grub is not installed"
+                exit 128
+            fi
+        else
             ERROR=0
             RESULT=$($SUDO_CMD grep "^\s*linux" /boot/grub/grub.cfg)
 
@@ -48,6 +60,8 @@ audit() {
                 ok "$PACKAGES are configured"
 
             fi
+        fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
@@ -62,6 +76,14 @@ apply() {
         fi
     done
 
+    is_pkg_installed "grub-pc"
+    if [ "$FNRET" != 0 ]; then
+        if [ "$IS_CONTAINER" -eq 1 ]; then
+            ok "Grub is not installed in container"
+        else
+            warn "You should use grub. Install it yourself"
+        fi
+    else
         ERROR=0
         RESULT=$($SUDO_CMD grep "^\s*linux" /boot/grub/grub.cfg)
 
@@ -78,11 +100,12 @@ apply() {
         IFS=$d_IFS
 
         if [ $ERROR = 1 ]; then
-        $SUDO_CMD sed -i "s/GRUB_CMDLINE_LINUX=\"/GRUB_CMDLINE_LINUX=\"apparmor=1 security=apparmor/" /etc/default/grub
+            $SUDO_CMD sed -i "s/GRUB_CMDLINE_LINUX=\"/GRUB_CMDLINE_LINUX=\"apparmor=1 security=apparmor /" /etc/default/grub
             $SUDO_CMD update-grub
         else
             ok "$PACKAGES are configured"
         fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/1.7.1.3_enforce_or_complain_apparmor.sh

@@ -21,15 +21,17 @@ PACKAGES='apparmor apparmor-utils'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    ERROR=0
     for PACKAGE in $PACKAGES; do
         is_pkg_installed "$PACKAGE"
         if [ "$FNRET" != 0 ]; then
             crit "$PACKAGE is absent!"
+            ERROR=1
         else
             ok "$PACKAGE is installed"
         fi
     done
-
+    if [ "$ERROR" = 0 ]; then
         RESULT_UNCONFINED=$($SUDO_CMD apparmor_status | grep "^0 processes are unconfined but have a profile defined")
 
         if [ -n "$RESULT_UNCONFINED" ]; then
@@ -38,6 +40,7 @@ audit() {
         else
             crit "Some processes are unconfined while they have defined profile"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
@@ -46,6 +49,7 @@ apply() {
         is_pkg_installed "$PACKAGE"
         if [ "$FNRET" != 0 ]; then
             crit "$PACKAGES is absent!"
+            apt_install "$PACKAGE"
         else
             ok "$PACKAGE is installed"
         fi

bin/hardening/1.7.1.4_enforcing_apparmor.sh

@@ -21,15 +21,17 @@ PACKAGES='apparmor apparmor-utils'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    ERROR=0
     for PACKAGE in $PACKAGES; do
         is_pkg_installed "$PACKAGE"
         if [ "$FNRET" != 0 ]; then
             crit "$PACKAGE is absent!"
+            ERROR=1
         else
             ok "$PACKAGE is installed"
         fi
     done
-
+    if [ "$ERROR" = 0 ]; then
         RESULT_UNCONFINED=$($SUDO_CMD apparmor_status | grep "^0 processes are unconfined but have a profile defined")
         RESULT_COMPLAIN=$($SUDO_CMD apparmor_status | grep "^0 profiles are in complain mode.")
 
@@ -44,6 +46,7 @@ audit() {
         else
             crit "Some processes are in complain mode"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
@@ -52,6 +55,7 @@ apply() {
         is_pkg_installed "$PACKAGE"
         if [ "$FNRET" != 0 ]; then
             crit "$PACKAGE is absent!"
+            apt_install "$PACKAGE"
         else
             ok "$PACKAGE is installed"
         fi

bin/hardening/2.2.15_mta_localhost.sh

@@ -21,6 +21,11 @@ HARDENING_EXCEPTION=mail
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    is_pkg_installed net-tools
+    if [ "$FNRET" != 0 ]; then
+        warn "netsat not installed, cannot execute check"
+        exit 2
+    else
         info "Checking netport ports opened"
         RESULT=$($SUDO_CMD netstat -an | grep LIST | grep ":25[[:space:]]") || :
         RESULT=${RESULT:-}
@@ -35,10 +40,16 @@ audit() {
                 crit "MTA listens worldwide"
             fi
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
+    is_pkg_installed net-tools
+    if [ "$FNRET" != 0 ]; then
+        warn "netsat not installed, cannot execute check"
+        exit 2
+    else
         info "Checking netport ports opened"
         RESULT=$(netstat -an | grep LIST | grep ":25[[:space:]]") || :
         RESULT=${RESULT:-}
@@ -53,7 +64,7 @@ apply() {
                 warn "MTA listens worldwide, correct this considering your MTA"
             fi
         fi
-    :
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/2.2.17_disable_nis.sh

@@ -17,14 +17,32 @@ HARDENING_LEVEL=3
 # shellcheck disable=2034
 DESCRIPTION="Disable NIS Server."
 
+PACKAGES='nis'
+
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    :
+    for PACKAGE in $PACKAGES; do
+        is_pkg_installed "$PACKAGE"
+        if [ "$FNRET" = 0 ]; then
+            crit "$PACKAGE is installed!"
+        else
+            ok "$PACKAGE is absent"
+        fi
+    done
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    :
+    for PACKAGE in $PACKAGES; do
+        is_pkg_installed "$PACKAGE"
+        if [ "$FNRET" = 0 ]; then
+            crit "$PACKAGE is installed, purging it"
+            apt-get purge "$PACKAGE" -y
+            apt-get autoremove -y
+        else
+            ok "$PACKAGE is absent"
+        fi
+    done
 }
 
 # This function will check config parameters required

bin/hardening/3.1.1_disable_ipv6.sh

@@ -21,29 +21,17 @@ SYSCTL_PARAMS='net.ipv6.conf.all.disable_ipv6=1 net.ipv6.conf.default.disable_ip
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    does_sysctl_param_exists "net.ipv6"
+    is_ipv6_enabled
     if [ "$FNRET" != 0 ]; then
         ok "ipv6 is disabled"
     else
-        for SYSCTL_VALUES in $SYSCTL_PARAMS; do
+        crit "ipv6 is enabled"
-            SYSCTL_PARAM=$(echo "$SYSCTL_VALUES" | cut -d= -f 1)
-            SYSCTL_EXP_RESULT=$(echo "$SYSCTL_VALUES" | cut -d= -f 2)
-            debug "$SYSCTL_PARAM should be set to $SYSCTL_EXP_RESULT"
-            has_sysctl_param_expected_result "$SYSCTL_PARAM" "$SYSCTL_EXP_RESULT"
-            if [ "$FNRET" != 0 ]; then
-                crit "$SYSCTL_PARAM was not set to $SYSCTL_EXP_RESULT"
-            elif [ "$FNRET" = 255 ]; then
-                warn "$SYSCTL_PARAM does not exist -- Typo?"
-            else
-                ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
-            fi
-        done
     fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    does_sysctl_param_exists "net.ipv6"
+    is_ipv6_enabled
     if [ "$FNRET" != 0 ]; then
         ok "ipv6 is disabled"
     else

bin/hardening/3.3.1_disable_source_routed_packets.sh

@@ -22,7 +22,7 @@ SYSCTL_PARAMS=''
 # This function will be called if the script status is on enabled / audit mode
 audit() {
     for SYSCTL_VALUES in $SYSCTL_PARAMS; do
-        does_sysctl_param_exists "net.ipv6"
+        is_ipv6_enabled
         if [ "$FNRET" = 0 ] || [[ ! "$SYSCTL_VALUES" =~ .*ipv6.* ]]; then # IPv6 is enabled or SYSCTL_VALUES doesn't contain ipv6
             SYSCTL_PARAM=$(echo "$SYSCTL_VALUES" | cut -d= -f 1)
             SYSCTL_EXP_RESULT=$(echo "$SYSCTL_VALUES" | cut -d= -f 2)

bin/hardening/3.3.9_disable_ipv6_router_advertisement.sh

@@ -21,10 +21,8 @@ SYSCTL_PARAMS='net.ipv6.conf.all.accept_ra=0 net.ipv6.conf.default.accept_ra=0'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    does_sysctl_param_exists "net.ipv6"
+    is_ipv6_enabled
-    if [ "$FNRET" != 0 ]; then
+    if [ "$FNRET" = 0 ]; then
-        ok "ipv6 is disabled"
-    else
         for SYSCTL_VALUES in $SYSCTL_PARAMS; do
             SYSCTL_PARAM=$(echo "$SYSCTL_VALUES" | cut -d= -f 1)
             SYSCTL_EXP_RESULT=$(echo "$SYSCTL_VALUES" | cut -d= -f 2)
@@ -38,15 +36,15 @@ audit() {
                 ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
             fi
         done
+    else
+        ok "ipv6 disabled"
     fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    does_sysctl_param_exists "net.ipv6"
+    is_ipv6_enabled
-    if [ "$FNRET" != 0 ]; then
+    if [ "$FNRET" = 0 ]; then
-        ok "ipv6 is disabled"
-    else
         for SYSCTL_VALUES in $SYSCTL_PARAMS; do
             SYSCTL_PARAM=$(echo "$SYSCTL_VALUES" | cut -d= -f 1)
             SYSCTL_EXP_RESULT=$(echo "$SYSCTL_VALUES" | cut -d= -f 2)
@@ -62,6 +60,8 @@ apply() {
                 ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
             fi
         done
+    else
+        ok "ipv6 disabled"
     fi
 }
 

bin/hardening/3.4.1_disable_dccp.sh

@@ -17,14 +17,39 @@ HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Disable Datagram Congestion Control Protocol (DCCP)."
 
+# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
+
+KERNEL_OPTION="CONFIG_NF_CT_PROTO_DCCP"
+MODULE_NAME="dccp"
+
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    info "Not implemented yet"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
+        ok "Container detected, consider host enforcing or disable this check!"
+    else
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            crit "$MODULE_NAME is enabled!"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    info "Not implemented yet"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
+        ok "Container detected, consider host enforcing!"
+    else
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/3.4.2_disable_sctp.sh

@@ -17,14 +17,39 @@ HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Disable Stream Control Transmission Protocol (SCTP)."
 
+# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
+
+KERNEL_OPTION="CONFIG_NF_CT_PROTO_SCTP"
+MODULE_NAME="sctp"
+
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    info "Not implemented yet"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
+        ok "Container detected, consider host enforcing or disable this check!"
+    else
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            crit "$MODULE_NAME is enabled!"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    info "Not implemented yet"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
+        ok "Container detected, consider host enforcing!"
+    else
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/3.4.3_disable_rds.sh

@@ -17,14 +17,39 @@ HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Disable Reliable Datagram Sockets (RDS)."
 
+# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
+
+KERNEL_OPTION="CONFIG_RDS"
+MODULE_NAME="rds"
+
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    info "Not implemented yet"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
+        ok "Container detected, consider host enforcing or disable this check!"
+    else
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            crit "$MODULE_NAME is enabled!"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    info "Not implemented yet"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
+        ok "Container detected, consider host enforcing!"
+    else
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/3.4.4_disable_tipc.sh

@@ -17,14 +17,39 @@ HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Disable Transperent Inter-Process Communication (TIPC)."
 
+# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
+
+KERNEL_OPTION="CONFIG_TIPC"
+MODULE_NAME="tipc"
+
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    info "Not implemented yet"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
+        ok "Container detected, consider host enforcing or disable this check!"
+    else
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME" "($MODULE_NAME|install)"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            crit "$MODULE_NAME is enabled!"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
-    info "Not implemented yet"
+    if [ "$IS_CONTAINER" -eq 1 ]; then
+        # In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
+        ok "Container detected, consider host enforcing!"
+    else
+        is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME" "($MODULE_NAME|install)"
+        if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
+            warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
+        else
+            ok "$MODULE_NAME is disabled"
+        fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/4.1.1.3_audit_bootloader.sh

@@ -18,7 +18,7 @@ HARDENING_LEVEL=4
 DESCRIPTION="Enable auditing for processes that start prior to auditd."
 
 FILE='/etc/default/grub'
-OPTIONS='GRUB_CMDLINE_LINUX="audit=1"'
+OPTIONS='GRUB_CMDLINE_LINUX=audit=1'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
@@ -30,7 +30,7 @@ audit() {
         for GRUB_OPTION in $OPTIONS; do
             GRUB_PARAM=$(echo "$GRUB_OPTION" | cut -d= -f 1)
             GRUB_VALUE=$(echo "$GRUB_OPTION" | cut -d= -f 2,3)
-            PATTERN="^$GRUB_PARAM=$GRUB_VALUE"
+            PATTERN="^$GRUB_PARAM=.*$GRUB_VALUE"
             debug "$GRUB_PARAM should be set to $GRUB_VALUE"
             does_pattern_exist_in_file "$FILE" "$PATTERN"
             if [ "$FNRET" != 0 ]; then
@@ -55,7 +55,7 @@ apply() {
         GRUB_PARAM=$(echo "$GRUB_OPTION" | cut -d= -f 1)
         GRUB_VALUE=$(echo "$GRUB_OPTION" | cut -d= -f 2,3)
         debug "$GRUB_PARAM should be set to $GRUB_VALUE"
-        PATTERN="^$GRUB_PARAM=$GRUB_VALUE"
+        PATTERN="^$GRUB_PARAM=.*$GRUB_VALUE"
         does_pattern_exist_in_file "$FILE" "$PATTERN"
         if [ "$FNRET" != 0 ]; then
             warn "$PATTERN is not present in $FILE, adding it"

bin/hardening/4.1.1.4_audit_backlog_limit.sh

@@ -18,7 +18,7 @@ HARDENING_LEVEL=4
 DESCRIPTION="Configure audit_backlog_limit to be sufficient."
 
 FILE='/etc/default/grub'
-OPTIONS='GRUB_CMDLINE_LINUX="audit_backlog_limit=8192"'
+OPTIONS='GRUB_CMDLINE_LINUX=audit_backlog_limit=8192'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
@@ -30,7 +30,7 @@ audit() {
         for GRUB_OPTION in $OPTIONS; do
             GRUB_PARAM=$(echo "$GRUB_OPTION" | cut -d= -f 1)
             GRUB_VALUE=$(echo "$GRUB_OPTION" | cut -d= -f 2,3)
-            PATTERN="^$GRUB_PARAM=$GRUB_VALUE"
+            PATTERN="^$GRUB_PARAM=.*$GRUB_VALUE"
             debug "$GRUB_PARAM should be set to $GRUB_VALUE"
             does_pattern_exist_in_file "$FILE" "$PATTERN"
             if [ "$FNRET" != 0 ]; then
@@ -55,7 +55,7 @@ apply() {
         GRUB_PARAM=$(echo "$GRUB_OPTION" | cut -d= -f 1)
         GRUB_VALUE=$(echo "$GRUB_OPTION" | cut -d= -f 2,3)
         debug "$GRUB_PARAM should be set to $GRUB_VALUE"
-        PATTERN="^$GRUB_PARAM=$GRUB_VALUE"
+        PATTERN="^$GRUB_PARAM=.*$GRUB_VALUE"
         does_pattern_exist_in_file "$FILE" "$PATTERN"
         if [ "$FNRET" != 0 ]; then
             warn "$PATTERN is not present in $FILE, adding it"

bin/hardening/4.1.11_record_privileged_commands.sh

@@ -18,8 +18,7 @@ HARDENING_LEVEL=4
 DESCRIPTION="Collect use of privileged commands."
 
 # Find all files with setuid or setgid set
-SUDO_CMD='sudo -n'
+AUDIT_PARAMS=$(find / -xdev \( -perm -4000 -o -perm -2000 \) -type f |
-AUDIT_PARAMS=$($SUDO_CMD find / -xdev \( -perm -4000 -o -perm -2000 \) -type f |
     awk '{print "-a always,exit -F path=" $1 " -F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged" }')
 FILE='/etc/audit/audit.rules'
 

bin/hardening/4.2.1.2_enable_syslog-ng.sh

@@ -17,10 +17,15 @@ HARDENING_LEVEL=3
 # shellcheck disable=2034
 DESCRIPTION="Ensure syslog-ng service is activated."
 
+PACKAGE='syslog-ng'
 SERVICE_NAME="syslog-ng"
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$PACKAGE is not installed!"
+    else
         info "Checking if $SERVICE_NAME is enabled"
         is_service_enabled "$SERVICE_NAME"
         if [ "$FNRET" = 0 ]; then
@@ -28,10 +33,15 @@ audit() {
         else
             crit "$SERVICE_NAME is disabled"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$PACKAGE is not installed!"
+    else
         info "Checking if $SERVICE_NAME is enabled"
         is_service_enabled "$SERVICE_NAME"
         if [ "$FNRET" != 0 ]; then
@@ -41,6 +51,7 @@ apply() {
         else
             ok "$SERVICE_NAME is enabled"
         fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/4.2.1.4_syslog_ng_logfiles_perm.sh

@@ -19,6 +19,7 @@ DESCRIPTION="Create and set permissions on syslog-ng logfiles."
 
 # Note: this is not exacly the same check as the one described in CIS PDF
 
+PACKAGE='syslog-ng'
 PERMISSIONS=''
 USER=''
 GROUP=''
@@ -26,6 +27,10 @@ EXCEPTIONS=''
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$PACKAGE is not installed!"
+    else
         FILES=$(grep "file(" "$SYSLOG_BASEDIR"/syslog-ng.conf | grep '"' | cut -d'"' -f 2)
         for FILE in $FILES; do
             does_file_exist "$FILE"
@@ -64,10 +69,15 @@ audit() {
                 fi
             fi
         done
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$PACKAGE is not installed!"
+    else
         for FILE in $FILES; do
             does_file_exist "$FILE"
             if [ "$FNRET" != 0 ]; then
@@ -113,6 +123,7 @@ apply() {
                 PERMISSIONS="$perm_bak"
             fi
         done
+    fi
 }
 
 # This function will create the config file for this check with default values

bin/hardening/4.2.1.5_syslog-ng_remote_host.sh

@@ -17,10 +17,16 @@ HARDENING_LEVEL=3
 # shellcheck disable=2034
 DESCRIPTION="Configure syslog-ng to send logs to a remote log host."
 
+PACKAGE='syslog-ng'
+
 PATTERN='destination[[:alnum:][:space:]*{]+(tcp|udp)[[:space:]]*\(\"[[:alnum:].]+\".'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$PACKAGE is not installed!"
+    else
         FOUND=0
         FILES="$SYSLOG_BASEDIR/syslog-ng.conf $($SUDO_CMD find -L "$SYSLOG_BASEDIR"/conf.d/ -type f)"
         for FILE in $FILES; do
@@ -35,10 +41,15 @@ audit() {
         else
             crit "$PATTERN is not present in $FILES"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$PACKAGE is not installed!"
+    else
         FOUND=0
         FILES="$SYSLOG_BASEDIR/syslog-ng.conf $(find -L "$SYSLOG_BASEDIR"/conf.d/ -type f)"
         for FILE in $FILES; do
@@ -52,6 +63,7 @@ apply() {
         else
             crit "$PATTERN is not present in $FILES, please set a remote host to send your logs"
         fi
+    fi
 }
 
 # This function will create the config file for this check with default values

bin/hardening/4.2.1.6_remote_syslog-ng_acl.sh

@@ -17,11 +17,17 @@ HARDENING_LEVEL=3
 # shellcheck disable=2034
 DESCRIPTION="Configure syslog to accept remote syslog messages only on designated log hosts."
 
+PACKAGE='syslog-ng'
+
 REMOTE_HOST=""
 PATTERN='source[[:alnum:][:space:]*{]+(tcp|udp)[[:space:]]*\(\"[[:alnum:].]+\".'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$PACKAGE is not installed!"
+    else
         FOUND=0
         FILES="$SYSLOG_BASEDIR/syslog-ng.conf $($SUDO_CMD find -L "$SYSLOG_BASEDIR"/conf.d/ -type f)"
         for FILE in $FILES; do
@@ -45,12 +51,16 @@ audit() {
             else
                 ok "$PATTERN is not present in $FILES"
             fi
-
+        fi
     fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$PACKAGE is not installed!"
+    else
         FOUND=0
         FILES="$SYSLOG_BASEDIR/syslog-ng.conf $(find -L "$SYSLOG_BASEDIR"/conf.d/ -type f)"
         for FILE in $FILES; do
@@ -74,7 +84,7 @@ apply() {
             else
                 ok "$PATTERN is not present in $FILES"
             fi
-
+        fi
     fi
 }
 

bin/hardening/4.2.2.1_journald_logs.sh

@@ -18,7 +18,7 @@ HARDENING_LEVEL=3
 DESCRIPTION="Configure journald to send logs to syslog-ng."
 
 FILE='/etc/systemd/journald.conf'
-OPTIONS='ForwardToSyslog=yes'
+OPTIONS='ForwardToSyslog=no'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
@@ -34,9 +34,9 @@ audit() {
             debug "$JOURNALD_PARAM should be set to $JOURNALD_VALUE"
             does_pattern_exist_in_file "$FILE" "$PATTERN"
             if [ "$FNRET" != 0 ]; then
-                crit "$PATTERN is not present in $FILE"
+                ok "$PATTERN is not present in $FILE"
             else
-                ok "$PATTERN is present in $FILE"
+                crit "$PATTERN is present in $FILE"
             fi
         done
     fi
@@ -57,18 +57,18 @@ apply() {
         debug "$JOURNALD_PARAM should be set to $JOURNALD_VALUE"
         PATTERN="^$JOURNALD_PARAM=$JOURNALD_VALUE"
         does_pattern_exist_in_file "$FILE" "$PATTERN"
-        if [ "$FNRET" != 0 ]; then
+        if [ "$FNRET" = 0 ]; then
-            warn "$PATTERN is not present in $FILE, adding it"
+            warn "$PATTERN is present in $FILE, deleting it"
             does_pattern_exist_in_file "$FILE" "^$JOURNALD_PARAM"
             if [ "$FNRET" != 0 ]; then
                 info "Parameter $JOURNALD_PARAM seems absent from $FILE, adding at the end"
-                add_end_of_file "$FILE" "$JOURNALD_PARAM = $JOURNALD_VALUE"
+                add_end_of_file "$FILE" "$JOURNALD_PARAM=yes"
             else
                 info "Parameter $JOURNALD_PARAM is present but with the wrong value -- Fixing"
-                replace_in_file "$FILE" "^$JOURNALD_PARAM=.*" "$JOURNALD_PARAM=$JOURNALD_VALUE"
+                replace_in_file "$FILE" "^$JOURNALD_PARAM=.*" "$JOURNALD_PARAM=yes"
             fi
         else
-            ok "$PATTERN is present in $FILE"
+            ok "$PATTERN is not present in $FILE"
         fi
     done
 }

bin/hardening/4.2.2.2_journald_compress.sh

@@ -18,7 +18,7 @@ HARDENING_LEVEL=3
 DESCRIPTION="Configure journald to send logs to syslog-ng."
 
 FILE='/etc/systemd/journald.conf'
-OPTIONS='Compress=yes'
+OPTIONS='Compress=no'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
@@ -34,9 +34,9 @@ audit() {
             debug "$JOURNALD_PARAM should be set to $JOURNALD_VALUE"
             does_pattern_exist_in_file "$FILE" "$PATTERN"
             if [ "$FNRET" != 0 ]; then
-                crit "$PATTERN is not present in $FILE"
+                ok "$PATTERN is not present in $FILE"
             else
-                ok "$PATTERN is present in $FILE"
+                crit "$PATTERN is present in $FILE"
             fi
         done
     fi
@@ -57,18 +57,18 @@ apply() {
         debug "$JOURNALD_PARAM should be set to $JOURNALD_VALUE"
         PATTERN="^$JOURNALD_PARAM=$JOURNALD_VALUE"
         does_pattern_exist_in_file "$FILE" "$PATTERN"
-        if [ "$FNRET" != 0 ]; then
+        if [ "$FNRET" = 0 ]; then
             warn "$PATTERN is not present in $FILE, adding it"
             does_pattern_exist_in_file "$FILE" "^$JOURNALD_PARAM"
             if [ "$FNRET" != 0 ]; then
                 info "Parameter $JOURNALD_PARAM seems absent from $FILE, adding at the end"
-                add_end_of_file "$FILE" "$JOURNALD_PARAM = $JOURNALD_VALUE"
+                add_end_of_file "$FILE" "$JOURNALD_PARAM=yes"
             else
                 info "Parameter $JOURNALD_PARAM is present but with the wrong value -- Fixing"
-                replace_in_file "$FILE" "^$JOURNALD_PARAM=.*" "$JOURNALD_PARAM=$JOURNALD_VALUE"
+                replace_in_file "$FILE" "^$JOURNALD_PARAM=.*" "$JOURNALD_PARAM=yes"
             fi
         else
-            ok "$PATTERN is present in $FILE"
+            ok "$PATTERN is not present in $FILE"
         fi
     done
 }

bin/hardening/4.2.2.3_journald_write_persistent.sh

@@ -62,7 +62,7 @@ apply() {
             does_pattern_exist_in_file "$FILE" "^$JOURNALD_PARAM"
             if [ "$FNRET" != 0 ]; then
                 info "Parameter $JOURNALD_PARAM seems absent from $FILE, adding at the end"
-                add_end_of_file "$FILE" "$JOURNALD_PARAM = $JOURNALD_VALUE"
+                add_end_of_file "$FILE" "$JOURNALD_PARAM=$JOURNALD_VALUE"
             else
                 info "Parameter $JOURNALD_PARAM is present but with the wrong value -- Fixing"
                 replace_in_file "$FILE" "^$JOURNALD_PARAM=.*" "$JOURNALD_PARAM=$JOURNALD_VALUE"

bin/hardening/5.1.2_crontab_perm_ownership.sh

@@ -24,6 +24,10 @@ GROUP='root'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    does_file_exist "$FILE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$FILE does not exist"
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -36,6 +40,7 @@ audit() {
         else
             crit "$FILE permissions were not set to $PERMISSIONS"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
@@ -44,7 +49,7 @@ apply() {
     if [ "$FNRET" != 0 ]; then
         info "$FILE does not exist"
         touch "$FILE"
-    fi
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -59,6 +64,7 @@ apply() {
             info "fixing $FILE permissions to $PERMISSIONS"
             chmod 0"$PERMISSIONS" "$FILE"
         fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/5.1.3_cron_hourly_perm_ownership.sh

@@ -24,6 +24,10 @@ GROUP='root'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    does_file_exist "$FILE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$FILE does not exist"
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -36,6 +40,7 @@ audit() {
         else
             crit "$FILE permissions were not set to $PERMISSIONS"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
@@ -44,7 +49,7 @@ apply() {
     if [ "$FNRET" != 0 ]; then
         info "$FILE does not exist"
         touch "$FILE"
-    fi
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -59,6 +64,7 @@ apply() {
             info "fixing $FILE permissions to $PERMISSIONS"
             chmod 0"$PERMISSIONS" "$FILE"
         fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/5.1.4_cron_daily_perm_ownership.sh

@@ -24,6 +24,10 @@ GROUP='root'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    does_file_exist "$FILE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$FILE does not exist"
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -36,6 +40,7 @@ audit() {
         else
             crit "$FILE permissions were not set to $PERMISSIONS"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
@@ -44,7 +49,7 @@ apply() {
     if [ "$FNRET" != 0 ]; then
         info "$FILE does not exist"
         touch "$FILE"
-    fi
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -59,6 +64,7 @@ apply() {
             info "fixing $FILE permissions to $PERMISSIONS"
             chmod 0"$PERMISSIONS" "$FILE"
         fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/5.1.5_cron_weekly_perm_ownership.sh

@@ -24,6 +24,10 @@ GROUP='root'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    does_file_exist "$FILE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$FILE does not exist"
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -36,6 +40,7 @@ audit() {
         else
             crit "$FILE permissions were not set to $PERMISSIONS"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
@@ -44,7 +49,7 @@ apply() {
     if [ "$FNRET" != 0 ]; then
         info "$FILE does not exist"
         touch "$FILE"
-    fi
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -59,6 +64,7 @@ apply() {
             info "fixing $FILE permissions to $PERMISSIONS"
             chmod 0"$PERMISSIONS" "$FILE"
         fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/5.1.6_cron_monthly_perm_ownership.sh

@@ -24,6 +24,10 @@ GROUP='root'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    does_file_exist "$FILE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$FILE does not exist"
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -36,6 +40,7 @@ audit() {
         else
             crit "$FILE permissions were not set to $PERMISSIONS"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
@@ -44,7 +49,7 @@ apply() {
     if [ "$FNRET" != 0 ]; then
         info "$FILE does not exist"
         touch "$FILE"
-    fi
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -59,6 +64,7 @@ apply() {
             info "fixing $FILE permissions to $PERMISSIONS"
             chmod 0"$PERMISSIONS" "$FILE"
         fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/5.1.8_cron_users.sh

@@ -20,6 +20,7 @@ DESCRIPTION="Restrict at/cron to authorized users."
 FILES_ABSENT='/etc/cron.deny /etc/at.deny'
 FILES_PRESENT='/etc/cron.allow /etc/at.allow'
 PERMISSIONS='644'
+PERMISSIONSOK='644 640 600 440 400'
 USER='root'
 GROUP='root'
 
@@ -36,7 +37,7 @@ audit() {
     for FILE in $FILES_PRESENT; do
         does_file_exist "$FILE"
         if [ "$FNRET" != 0 ]; then
-            crit "$FILE is absent"
+            crit "$FILE is absent, should exist"
         else
             has_file_correct_ownership "$FILE" "$USER" "$GROUP"
             if [ "$FNRET" = 0 ]; then
@@ -44,7 +45,7 @@ audit() {
             else
                 crit "$FILE ownership was not set to $USER:$GROUP"
             fi
-            has_file_correct_permissions "$FILE" "$PERMISSIONS"
+            has_file_one_of_permissions "$FILE" "$PERMISSIONSOK"
             if [ "$FNRET" = 0 ]; then
                 ok "$FILE has correct permissions"
             else
@@ -68,7 +69,7 @@ apply() {
     for FILE in $FILES_PRESENT; do
         does_file_exist "$FILE"
         if [ "$FNRET" != 0 ]; then
-            warn "$FILE is absent"
+            warn "$FILE is absent, fixing (touch)"
             touch "$FILE"
         fi
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
@@ -78,7 +79,7 @@ apply() {
             warn "fixing $FILE ownership to $USER:$GROUP"
             chown "$USER":"$GROUP" "$FILE"
         fi
-        has_file_correct_permissions "$FILE" "$PERMISSIONS"
+        has_file_one_of_permissions "$FILE" "$PERMISSIONSOK"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct permissions"
         else

bin/hardening/5.2.10_disable_root_login.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.11_disable_sshd_permitemptypasswords.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.12_disable_sshd_setenv.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.13_sshd_ciphers.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.14_ssh_cry_mac.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do
@@ -78,7 +78,7 @@ create_config() {
     cat <<EOF
 status=audit
 # Put your MACs
-OPTIONS="MACs=umac-128-etm@openssh.com,umac-64-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128@openssh.com,umac-64@openssh.com,hmac-sha2-512,hmac-sha2-256"
+OPTIONS="MACs=hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512,hmac-sha2-256"
 EOF
 }
 

bin/hardening/5.2.15_ssh_cry_kex.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do
@@ -73,15 +73,12 @@ apply() {
 }
 
 create_config() {
-    get_debian_major_version
     set +u
     debug "Debian version : $DEB_MAJ_VER "
-    if [[ -z "$DEB_MAJ_VER" ]] || [[ 7 -eq "$DEB_MAJ_VER" ]]; then
+    if [[ 7 -le "$DEB_MAJ_VER" ]]; then
         KEX='diffie-hellman-group-exchange-sha256'
-    elif [[ 8 -eq "$DEB_MAJ_VER" ]] || [[ 9 -eq "$DEB_MAJ_VER" ]]; then
-        KEX='curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256'
     else
-        KEX='diffie-hellman-group-exchange-sha256'
+        KEX='curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,ecdh-sha2-nistp521,ecdh-sha2-nistp384,ecdh-sha2-nistp256,diffie-hellman-group-exchange-sha256'
     fi
     set -u
     cat <<EOF
@@ -89,6 +86,7 @@ status=audit
 # Put your KexAlgorithms
 OPTIONS="KexAlgorithms=$KEX"
 EOF
+
 }
 
 # This function will check config parameters required

bin/hardening/5.2.16_sshd_idle_timeout.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.17_sshd_login_grace_time.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.18_sshd_limit_access.sh

@@ -25,7 +25,7 @@ audit() {
     OPTIONS="AllowUsers='$ALLOWED_USERS' AllowGroups='$ALLOWED_GROUPS' DenyUsers='$DENIED_USERS' DenyGroups='$DENIED_GROUPS'"
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.19_ssh_banner.sh

@@ -25,7 +25,7 @@ audit() {
     OPTIONS="Banner=$BANNER_FILE"
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.1_sshd_conf_perm_ownership.sh

@@ -17,6 +17,7 @@ HARDENING_LEVEL=1
 # shellcheck disable=2034
 DESCRIPTION="Checking permissions and ownership to root 600 for sshd_config."
 
+PACKAGE='openssh-server'
 FILE='/etc/ssh/sshd_config'
 PERMISSIONS='600'
 USER='root'
@@ -24,6 +25,10 @@ GROUP='root'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        ok "$PACKAGE is not installed!"
+    else
         has_file_correct_ownership "$FILE" "$USER" "$GROUP"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct ownership"
@@ -36,10 +41,15 @@ audit() {
         else
             crit "$FILE permissions were not set to $PERMISSIONS"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
+    is_pkg_installed "$PACKAGE"
+    if [ "$FNRET" != 0 ]; then
+        ok "$PACKAGE is not installed"
+    else
         does_file_exist "$FILE"
         if [ "$FNRET" != 0 ]; then
             info "$FILE does not exist"
@@ -59,6 +69,7 @@ apply() {
             info "fixing $FILE permissions to $PERMISSIONS"
             chmod 0"$PERMISSIONS" "$FILE"
         fi
+    fi
 }
 
 # This function will check config parameters required

bin/hardening/5.2.20_enable_ssh_pam.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.21_disable_ssh_allow_tcp_forwarding.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.22_configure_ssh_max_startups.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.23_limit_ssh_max_sessions.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.4_sshd_protocol.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.5_sshd_loglevel.sh

@@ -26,7 +26,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.6_disable_x11_forwarding.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.7_sshd_maxauthtries.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.8_enable_sshd_ignorerhosts.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.2.9_disable_sshd_hostbasedauthentication.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/5.3.2_enable_lockout_failed_password.sh

@@ -18,8 +18,8 @@ HARDENING_LEVEL=3
 DESCRIPTION="Set lockout for failed password attemps."
 
 PACKAGE='libpam-modules-bin'
-PATTERN_AUTH='^auth[[:space:]]*required[[:space:]]*pam_tally[2]?\.so'
+PATTERN_AUTH='^auth[[:space:]]*required[[:space:]]*pam_((tally[2]?)|(faillock))\.so'
-PATTERN_ACCOUNT='pam_tally[2]?\.so'
+PATTERN_ACCOUNT='pam_((tally[2]?)|(faillock))\.so'
 FILE_AUTH='/etc/pam.d/common-auth'
 FILE_ACCOUNT='/etc/pam.d/common-account'
 
@@ -59,14 +59,22 @@ apply() {
         ok "$PATTERN_AUTH is present in $FILE_AUTH"
     else
         warn "$PATTERN_AUTH is not present in $FILE_AUTH, adding it"
+        if [ 10 -ge "$DEB_MAJ_VER" ]; then
             add_line_file_before_pattern "$FILE_AUTH" "auth required pam_tally2.so onerr=fail audit silent deny=5 unlock_time=900" "# pam-auth-update(8) for details."
+        else
+            add_line_file_before_pattern "$FILE_AUTH" "auth required pam_faillock.so onerr=fail audit silent deny=5 unlock_time=900" "# pam-auth-update(8) for details."
+        fi
     fi
     does_pattern_exist_in_file "$FILE_ACCOUNT" "$PATTERN_ACCOUNT"
     if [ "$FNRET" = 0 ]; then
         ok "$PATTERN_ACCOUNT is present in $FILE_ACCOUNT"
     else
         warn "$PATTERN_ACCOUNT is not present in $FILE_ACCOUNT, adding it"
-        add_line_file_before_pattern "$FILE_ACCOUNT" "account required pam_tally.so" "# pam-auth-update(8) for details."
+        if [ 10 -ge "$DEB_MAJ_VER" ]; then
+            add_line_file_before_pattern "$FILE_ACCOUNT" "account required pam_tally2.so" "# pam-auth-update(8) for details."
+        else
+            add_line_file_before_pattern "$FILE_ACCOUNT" "account required pam_faillock.so" "# pam-auth-update(8) for details."
+        fi
 
     fi
 }

bin/hardening/99.1.1.23_disable_usb_devices.sh

@@ -13,6 +13,9 @@ set -e # One error, it's over
 set -u # One variable unset, it's over
 
 USER='root'
+
+# shellcheck disable=2034
+HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="USB devices are disabled."
 

bin/hardening/99.1.3_acc_sudoers_no_all.sh

@@ -12,6 +12,8 @@
 set -e # One error, it's over
 set -u # One variable unset, it's over
 
+# shellcheck disable=2034
+HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Checks there are no carte-blanche authorization in sudoers file(s)."
 

bin/hardening/99.3.3.4_hosts_allow_permissions.sh

@@ -24,6 +24,11 @@ GROUP='root'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    does_file_exist "$FILE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$FILE does not exist"
+    else
+        ok "$FILE exist"
         has_file_correct_permissions "$FILE" "$PERMISSIONS"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct permissions"
@@ -36,10 +41,19 @@ audit() {
         else
             crit "$FILE ownership was not set to $USER:$GROUP"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
+    does_file_exist "$FILE"
+    if [ "$FNRET" != 0 ]; then
+        warn "$FILE does not exist"
+        touch "$FILE"
+        warn "You may want to fill it with allowed networks"
+    else
+        ok "$FILE exist"
+    fi
     has_file_correct_permissions "$FILE" "$PERMISSIONS"
     if [ "$FNRET" = 0 ]; then
         ok "$FILE has correct permissions"

bin/hardening/99.3.3.5_hosts_deny_permissions.sh

@@ -24,6 +24,11 @@ GROUP='root'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
+    does_file_exist "$FILE"
+    if [ "$FNRET" != 0 ]; then
+        crit "$FILE does not exist"
+    else
+        ok "$FILE exist"
         has_file_correct_permissions "$FILE" "$PERMISSIONS"
         if [ "$FNRET" = 0 ]; then
             ok "$FILE has correct permissions"
@@ -36,10 +41,19 @@ audit() {
         else
             crit "$FILE ownership was not set to $USER:$GROUP"
         fi
+    fi
 }
 
 # This function will be called if the script status is on enabled mode
 apply() {
+    does_file_exist "$FILE"
+    if [ "$FNRET" != 0 ]; then
+        warn "$FILE does not exist"
+        touch "$FILE"
+        warn "You may want to fill it with allowed networks"
+    else
+        ok "$FILE exist"
+    fi
     has_file_correct_permissions "$FILE" "$PERMISSIONS"
     if [ "$FNRET" = 0 ]; then
         ok "$FILE has correct permissions"

bin/hardening/99.5.2.1_ssh_auth_pubk_only.sh

@@ -25,7 +25,7 @@ OPTIONS='PubkeyAuthentication=yes PasswordAuthentication=no KbdInteractiveAuthen
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/99.5.2.2_ssh_cry_rekey.sh

@@ -24,15 +24,14 @@ FILE='/etc/ssh/sshd_config'
 
 # This function will be called if the script status is on enabled / audit mode
 audit() {
-    get_debian_major_version
     set +u
     debug "Debian version : $DEB_MAJ_VER "
-    if [[ -z $DEB_MAJ_VER ]]; then
+    if [[ -z "$DEB_MAJ_VER" ]]; then
         set -u
         crit "Cannot get Debian version. Aborting..."
         return
     fi
-    if [[ "${DEB_MAJ_VER}" -lt "8" ]]; then
+    if [[ "${DEB_MAJ_VER}" != "sid" ]] && [[ "${DEB_MAJ_VER}" -lt "8" ]]; then
         set -u
         warn "Debian version too old (${DEB_MAJ_VER}), check does not apply, you should disable this check."
         return
@@ -40,7 +39,7 @@ audit() {
     set -u
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/99.5.2.3_ssh_disable_features.sh

@@ -13,6 +13,7 @@ set -e # One error, it's over
 set -u # One variable unset, it's over
 
 # shellcheck disable=2034
+HARDENING_LEVEL=3
 # shellcheck disable=2034
 DESCRIPTION="Check all special features in sshd_config are disabled"
 
@@ -24,7 +25,7 @@ OPTIONS='AllowAgentForwarding=no AllowTcpForwarding=no AllowStreamLocalForwardin
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/99.5.2.4_ssh_keys_from.sh

@@ -12,6 +12,8 @@
 set -e # One error, it is over
 set -u # One variable unset, it is over
 
+# shellcheck disable=2034
+HARDENING_LEVEL=3
 # shellcheck disable=2034
 DESCRIPTION="Check <from> field in ssh authorized keys files for users with login shell, and allowed IP if available."
 

bin/hardening/99.5.2.5_ssh_strict_modes.sh

@@ -12,6 +12,8 @@
 set -e # One error, it's over
 set -u # One variable unset, it's over
 
+# shellcheck disable=2034
+HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Ensure home directory and ssh sensitive files are verified (not publicly readable) before connecting."
 
@@ -23,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/99.5.2.6_ssh_sys_accept_env.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         does_pattern_exist_in_file_nocase "$FILE" "$PATTERN"

bin/hardening/99.5.2.7_ssh_sys_no_legacy.sh

@@ -12,8 +12,11 @@
 set -e # One error, it's over
 set -u # One variable unset, it's over
 
+# shellcheck disable=2034
+HARDENING_LEVEL=3
 # shellcheck disable=2034
 DESCRIPTION="Ensure that legacy services rlogin, rlogind and rcp are disabled and not installed"
+
 # shellcheck disable=2034
 SERVICES="rlogin rlogind rcp"
 

bin/hardening/99.5.2.8_ssh_sys_sandbox.sh

@@ -25,7 +25,7 @@ FILE='/etc/ssh/sshd_config'
 audit() {
     is_pkg_installed "$PACKAGE"
     if [ "$FNRET" != 0 ]; then
-        crit "$PACKAGE is not installed!"
+        ok "$PACKAGE is not installed!"
     else
         ok "$PACKAGE is installed"
         for SSH_OPTION in $OPTIONS; do

bin/hardening/99.5.4.5.1_acc_logindefs_sha512.sh

@@ -6,14 +6,16 @@
 #
 
 #
-# 99.5.4.5.1 Check that any password that may exist in /etc/shadow is SHA512 hashed and salted
+# 99.5.4.5.1 Check that any password that will be created will be SHA512 hashed and salted
 #
 
 set -e # One error, it's over
 set -u # One variable unset, it's over
 
 # shellcheck disable=2034
-DESCRIPTION="Check that any password that may exist in /etc/shadow is SHA512 hashed and salted"
+HARDENING_LEVEL=2
+# shellcheck disable=2034
+DESCRIPTION="Check that any password that will be created will be SHA512 hashed and salted"
 
 CONF_FILE="/etc/login.defs"
 CONF_LINE="ENCRYPT_METHOD SHA512"

bin/hardening/99.5.4.5.2_acc_shadow_sha512.sh

@@ -12,6 +12,8 @@
 set -e # One error, it's over
 set -u # One variable unset, it's over
 
+# shellcheck disable=2034
+HARDENING_LEVEL=2
 # shellcheck disable=2034
 DESCRIPTION="Check that any password that may exist in /etc/shadow is SHA512 hashed and salted"
 FILE="/etc/shadow"

bin/hardening/99.99_check_distribution.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+# run-shellcheck
+#
+# OVH Security audit
+#
+
+#
+# 99.99 Ensure that the distribution version is debian and that the version is 9 or 10
+#
+
+set -e # One error, it's over
+set -u # One variable unset, it's over
+
+# shellcheck disable=2034
+HARDENING_LEVEL=1
+# shellcheck disable=2034
+DESCRIPTION="Check the distribution and the distribution version"
+
+# This function will be called if the script status is on enabled / audit mode
+audit() {
+    if [ "$DISTRIBUTION" != "debian" ]; then
+        crit "Your distribution has been identified as $DISTRIBUTION which is not debian"
+    else
+        if [ "$DEB_MAJ_VER" = "sid" ] || [ "$DEB_MAJ_VER" -gt "$HIGHEST_SUPPORTED_DEBIAN_VERSION" ]; then
+            crit "Your distribution is too recent and is not yet supported."
+        elif [ "$DEB_MAJ_VER" -lt "$SMALLEST_SUPPORTED_DEBIAN_VERSION" ]; then
+            crit "Your distribution is debian but is deprecated. Consider upgrading to a supported version."
+        else
+            ok "Your distribution is debian and the version is supported"
+
+        fi
+    fi
+}
+
+# This function will be called if the script status is on enabled mode
+apply() {
+    echo "Reporting only here, upgrade your debian version to a supported version if you're on debian"
+    echo "If you use another distribution, consider applying rules corresponding with your distribution available at https://www.cisecurity.org/"
+}
+
+# This function will check config parameters required
+check_config() {
+    :
+}
+
+# Source Root Dir Parameter
+if [ -r /etc/default/cis-hardening ]; then
+    # shellcheck source=../../debian/default
+    . /etc/default/cis-hardening
+fi
+if [ -z "$CIS_ROOT_DIR" ]; then
+    echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
+    echo "Cannot source CIS_ROOT_DIR variable, aborting."
+    exit 128
+fi
+
+# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
+if [ -r "$CIS_ROOT_DIR"/lib/main.sh ]; then
+    # shellcheck source=../../lib/main.sh
+    . "$CIS_ROOT_DIR"/lib/main.sh
+else
+    echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
+    exit 128
+fi

debian/changelog

@@ -1,3 +1,32 @@
+cis-hardening (3.1-1) unstable; urgency=medium
+
+  * Various mispeling fixes
+  * Fix div function that causes a display bug when runnin test with --only
+  * Fix 4.1.1.4 bad pattern bug
+  * Fix 5.4.2.2
+  * Various verification that package is installed or file exist before running check (openssh, apparmor, crontab)
+
+ -- Thibault Ayanides <thibault.ayanides@ovhcloud.com>  Thu, 25 Mar 2021 14:59:49 +0100
+
+cis-hardening (3.1-0) unstable; urgency=medium
+
+  * Add missing HARDENING_LEVEL var for some checks
+  * Add dealing with debian 11
+  * Add warning for unsupported distributions and debian version
+  * Remove bc dependency
+  * Add 1.8.1-4 comprehensive tests
+  * Add 3.1-3.x comprehensive tests
+  * Add missing 3.4.x checks and tests (exotic protocol)
+  * Add environment detection (container)
+  * Improve kernel module detection
+  * Improve partition detection
+  * Add cli option to override loglevel
+  * Improve 5.1.8 to allow more restrictive permissions
+  * Upgrade mac and key to be debian10 CIS compliant
+  * Fix path in 1.6.4
+
+ -- Thibault Ayanides <thibault.ayanides@ovhcloud.com>  Mon, 22 Feb 2021 8:30:01 +0100
+
 cis-hardening (3.0-1) unstable; urgency=medium
 
   * Add workflows for github action

debian/cis-hardening.8

@@ -127,10 +127,21 @@ Note that you need to provide a sudoers file with NOPASSWD option in
 password.
 Finally note that \f[C]--sudo\f[R] mode only works for audit mode.
 .TP
+.B \f[C]--set-log-level=level\f[R]
+This option sets LOGLEVEL, you can choose : info, warning, error, ok,
+debug.
+Default value is : info
+.TP
 .B \f[C]--batch\f[R]
 While performing system audit, this option sets LOGLEVEL to `ok' and
 captures all output to print only one line once the check is done,
 formatted like : OK|KO OK|KO|WARN{subcheck results} [OK|KO|WARN{\&...}]
+.PP
+\f[C]--allow-unsupported-distribution\f[R] Must be specified manually in
+the command line to allow the run on non compatible version or
+distribution.
+If you want to mute the warning change the LOGLEVEL in
+/etc/hardening.cfg
 .SH AUTHORS
 .IP \[bu] 2
 Thibault Dewailly, OVHcloud <thibault.dewailly@ovhcloud.com>

debian/control

@@ -10,7 +10,7 @@ Vcs-Browser: https://github.com/ovh/debian-cis/
 
 Package: cis-hardening
 Architecture: all
-Depends: ${misc:Depends}, bc, patch
+Depends: ${misc:Depends}, patch
 Description: Suite of configurable scripts to audit or harden a Debian.
  Modular Debian security hardening scripts based on cisecurity.org
  ⟨cisecurity.org⟩ recommendations. We use it at OVH ⟨https://www.ovh.com⟩ to

lib/common.sh

@@ -112,3 +112,24 @@ sudo_wrapper() {
         crit "Not allowed to \"sudo -n $*\" "
     fi
 }
+
+#
+# Math functions
+#
+
+div() {
+    local _d=${3:-2}
+    local _n=0000000000
+    _n=${_n:0:$_d}
+    if (($1 == 0)); then
+        echo "0"
+        return
+    fi
+    if (($2 == 0)); then
+        echo "N.A"
+        return
+    fi
+    local _r=$(($1$_n / $2))
+    _r=${_r:0:-$_d}.${_r: -$_d}
+    echo $_r
+}

lib/constants.sh

@@ -31,3 +31,32 @@ BGREEN='\033[1;32m' # Green
 BYELLOW='\033[1;33m' # Yellow
 # shellcheck disable=2034
 BWHITE='\033[1;37m' # White
+
+# Debian version variables
+
+CONTAINER_TYPE=""
+IS_CONTAINER=0
+
+if [ "$(is_running_in_container "docker")" != "" ]; then
+    CONTAINER_TYPE="docker"
+    IS_CONTAINER=1
+fi
+if [ "$(is_running_in_container "lxc")" != "" ]; then
+    CONTAINER_TYPE="lxc"
+    IS_CONTAINER=1
+fi
+if [ "$(is_running_in_container "kubepods")" != "" ]; then
+    # shellcheck disable=SC2034
+    CONTAINER_TYPE="kubepods"
+    # shellcheck disable=SC2034
+    IS_CONTAINER=1
+fi
+
+get_distribution
+
+get_debian_major_version
+
+# shellcheck disable=SC2034
+SMALLEST_SUPPORTED_DEBIAN_VERSION=9
+# shellcheck disable=SC2034
+HIGHEST_SUPPORTED_DEBIAN_VERSION=10

lib/main.sh

@@ -10,14 +10,15 @@ BATCH_OUTPUT=""
 status=""
 forcedstatus=""
 SUDO_CMD=""
-# shellcheck source=constants.sh
+
-[ -r "$CIS_ROOT_DIR"/lib/constants.sh ] && . "$CIS_ROOT_DIR"/lib/constants.sh
 # shellcheck source=../etc/hardening.cfg
 [ -r "$CIS_ROOT_DIR"/etc/hardening.cfg ] && . "$CIS_ROOT_DIR"/etc/hardening.cfg
 # shellcheck source=../lib/common.sh
 [ -r "$CIS_ROOT_DIR"/lib/common.sh ] && . "$CIS_ROOT_DIR"/lib/common.sh
 # shellcheck source=../lib/utils.sh
 [ -r "$CIS_ROOT_DIR"/lib/utils.sh ] && . "$CIS_ROOT_DIR"/lib/utils.sh
+# shellcheck source=constants.sh
+[ -r "$CIS_ROOT_DIR"/lib/constants.sh ] && . "$CIS_ROOT_DIR"/lib/constants.sh
 
 # Environment Sanitizing
 export PATH='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'

lib/utils.sh

@@ -46,6 +46,30 @@ set_sysctl_param() {
     fi
 }
 
+#
+# IPV6
+#
+
+is_ipv6_enabled() {
+    SYSCTL_PARAMS='net.ipv6.conf.all.disable_ipv6=1 net.ipv6.conf.default.disable_ipv6=1 net.ipv6.conf.lo.disable_ipv6=1'
+
+    does_sysctl_param_exists "net.ipv6"
+    local ENABLE=1
+    if [ "$FNRET" = 0 ]; then
+        for SYSCTL_VALUES in $SYSCTL_PARAMS; do
+            SYSCTL_PARAM=$(echo "$SYSCTL_VALUES" | cut -d= -f 1)
+            SYSCTL_EXP_RESULT=$(echo "$SYSCTL_VALUES" | cut -d= -f 2)
+            debug "$SYSCTL_PARAM should be set to $SYSCTL_EXP_RESULT"
+            has_sysctl_param_expected_result "$SYSCTL_PARAM" "$SYSCTL_EXP_RESULT"
+            if [ "$FNRET" != 0 ]; then
+                crit "$SYSCTL_PARAM was not set to $SYSCTL_EXP_RESULT"
+                ENABLE=0
+            fi
+        done
+    fi
+    FNRET=$ENABLE
+}
+
 #
 # Dmesg
 #
@@ -295,14 +319,35 @@ is_service_enabled() {
 is_kernel_option_enabled() {
     local KERNEL_OPTION="$1"
     local MODULE_NAME=""
+    local MODPROBE_FILTER=""
+    local RESULT=""
+    local IS_MONOLITHIC_KERNEL=1
+    local DEF_MODULE=""
+
     if [ $# -ge 2 ]; then
         MODULE_NAME="$2"
     fi
+
+    if [ $# -ge 3 ]; then
+        MODPROBE_FILTER="$3"
+    fi
+
+    debug "Detect if lsmod is available and does not return an error code (otherwise consider as a monolithic kernel"
+    if $SUDO_CMD lsmod >/dev/null 2>&1; then
+        IS_MONOLITHIC_KERNEL=0
+    fi
+
+    if [ $IS_MONOLITHIC_KERNEL -eq 1 ]; then
         if $SUDO_CMD [ -r "/proc/config.gz" ]; then
             RESULT=$($SUDO_CMD zgrep "^$KERNEL_OPTION=" /proc/config.gz) || :
         elif $SUDO_CMD [ -r "/boot/config-$(uname -r)" ]; then
             RESULT=$($SUDO_CMD grep "^$KERNEL_OPTION=" "/boot/config-$(uname -r)") || :
+        else
+            debug "No information about kernel found, you're probably in a container"
+            FNRET=127
+            return
         fi
+
         ANSWER=$(cut -d = -f 2 <<<"$RESULT")
         if [ "x$ANSWER" = "xy" ]; then
             debug "Kernel option $KERNEL_OPTION enabled"
@@ -325,15 +370,41 @@ is_kernel_option_enabled() {
             if $SUDO_CMD [ -n "$modulefile" ]; then
                 debug "We do have $modulefile!"
                 # ... but wait, maybe it's blacklisted? check files in /etc/modprobe.d/ for "blacklist xyz"
-            if grep -qRE "^\s*blacklist\s+$MODULE_NAME\s*$" /etc/modprobe.d/; then
+                if grep -qRE "^\s*blacklist\s+$MODULE_NAME\s*$" /etc/modprobe.d/*.conf; then
                     debug "... but it's blacklisted!"
                     FNRET=1 # Not found (found but blacklisted)
-                # FIXME: even if blacklisted, it might be present in the initrd and
+                fi
-                # be insmod from there... but painful to check :/ maybe lsmod would be enough ?
+                # ... but wait, maybe it's override ? check files in /etc/modprobe.d/ for "install xyz /bin/(true|false)"
+                if grep -aRE "^\s*install\s+$MODULE_NAME\s+/bin/(true|false)\s*$" /etc/modprobe.d/*.conf; then
+                    debug "... but it's override!"
+                    FNRET=1 # Not found (found but override)
                 fi
                 FNRET=0 # Found!
             fi
         fi
+    else
+        if [ "$MODPROBE_FILTER" != "" ]; then
+            DEF_MODULE="$($SUDO_CMD modprobe -n -v "$MODULE_NAME" 2>/dev/null | grep -E "$MODPROBE_FILTER" | xargs)"
+        else
+            DEF_MODULE="$($SUDO_CMD modprobe -n -v "$MODULE_NAME" 2>/dev/null | xargs)"
+        fi
+
+        if [ "$DEF_MODULE" == "install /bin/true" ] || [ "$DEF_MODULE" == "install /bin/false" ]; then
+            debug "$MODULE_NAME is disabled (blacklist with override)"
+            FNRET=1
+        elif [ "$DEF_MODULE" == "" ]; then
+            debug "$MODULE_NAME is disabled"
+            FNRET=1
+        else
+            debug "$MODULE_NAME is enabled"
+            FNRET=0
+        fi
+
+        if [ "$($SUDO_CMD lsmod | grep -E "$MODULE_NAME" 2>/dev/null)" != "" ]; then
+            debug "$MODULE_NAME is enabled"
+            FNRET=0
+        fi
+    fi
 }
 
 #
@@ -344,6 +415,12 @@ is_kernel_option_enabled() {
 is_a_partition() {
     local PARTITION=$1
     FNRET=128
+    if [ ! -f /etc/fstab ] || [ -n "$(sed '/^#/d' /etc/fstab)" ]; then
+        debug "/etc/fstab not found or empty, searching mountpoint"
+        if mountpoint "$PARTITION" | grep -qE ".*is a mountpoint.*"; then
+            FNRET=0
+        fi
+    else
         if grep "[[:space:]]$1[[:space:]]" /etc/fstab | grep -vqE "^#"; then
             debug "$PARTITION found in fstab"
             FNRET=0
@@ -351,6 +428,8 @@ is_a_partition() {
             debug "Unable to find $PARTITION in fstab"
             FNRET=1
         fi
+
+    fi
 }
 
 # Verify that $1 is mounted at runtime
@@ -369,6 +448,10 @@ is_mounted() {
 has_mount_option() {
     local PARTITION=$1
     local OPTION=$2
+    if [ ! -f /etc/fstab ] || [ -n "$(sed '/^#/d' /etc/fstab)" ]; then
+        debug "/etc/fstab not found or empty, readin current mount options"
+        has_mounted_option "$PARTITION" "$OPTION"
+    else
         if grep "[[:space:]]${PARTITION}[[:space:]]" /etc/fstab | grep -vE "^#" | awk '{print $4}' | grep -q "bind"; then
             local actual_partition
             actual_partition="$(grep "[[:space:]]${PARTITION}[[:space:]]" /etc/fstab | grep -vE "^#" | awk '{print $1}')"
@@ -382,6 +465,7 @@ has_mount_option() {
             debug "Unable to find $OPTION in fstab for partition $PARTITION"
             FNRET=1
         fi
+    fi
 }
 
 # Verify $1 has the proper option $2 at runtime
@@ -478,9 +562,33 @@ get_debian_major_version() {
     DEB_MAJ_VER=""
     does_file_exist /etc/debian_version
     if [ "$FNRET" = 0 ]; then
+        if grep -q "sid" /etc/debian_version; then
+            DEB_MAJ_VER="sid"
+        else
             DEB_MAJ_VER=$(cut -d '.' -f1 /etc/debian_version)
+        fi
     else
         # shellcheck disable=2034
         DEB_MAJ_VER=$(lsb_release -r | cut -f2 | cut -d '.' -f 1)
     fi
 }
+
+# Returns the distribution
+
+get_distribution() {
+    DISTRIBUTION=""
+    if [ -f /etc/os-release ]; then
+        # shellcheck disable=2034
+        DISTRIBUTION=$(grep "^ID=" /etc/os-release | sed 's/ID=//' | tr '[:upper:]' '[:lower:]')
+        FNRET=0
+    else
+        debug "Distribution not found !"
+        FNRET=127
+    fi
+}
+
+# Detect if container based on cgroup detection
+
+is_running_in_container() {
+    awk -F/ '$2 == "'"$1"'"' /proc/self/cgroup
+}

tests/docker/Dockerfile.debian10

@@ -7,7 +7,7 @@ LABEL description="This image is used to run tests"
 
 RUN groupadd -g 500 secaudit && useradd  -u 500 -g 500 -s /bin/bash secaudit && install -m 700 -o secaudit -g secaudit -d /home/secaudit
 
-RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y bc openssh-server sudo syslog-ng net-tools auditd
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y openssh-server sudo syslog-ng net-tools auditd
 
 COPY --chown=500:500 . /opt/debian-cis/
 

tests/docker/Dockerfile.debian11

@@ -0,0 +1,21 @@
+FROM debian:bullseye
+
+LABEL vendor="OVH"
+LABEL project="debian-cis"
+LABEL url="https://github.com/ovh/debian-cis"
+LABEL description="This image is used to run tests"
+
+RUN groupadd -g 500 secaudit && useradd  -u 500 -g 500 -s /bin/bash secaudit && install -m 700 -o secaudit -g secaudit -d /home/secaudit
+
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y openssh-server sudo syslog-ng net-tools auditd cron
+
+COPY --chown=500:500 . /opt/debian-cis/
+
+COPY debian/default /etc/default/cis-hardening
+RUN sed -i 's#cis-hardening#debian-cis#' /etc/default/cis-hardening
+
+COPY cisharden.sudoers /etc/sudoers.d/secaudit
+RUN sed -i 's#cisharden#secaudit#' /etc/sudoers.d/secaudit
+
+
+ENTRYPOINT ["/opt/debian-cis/tests/launch_tests.sh"]

tests/docker/Dockerfile.debian8

@@ -7,7 +7,7 @@ LABEL description="This image is used to run tests"
 
 RUN groupadd -g 500 secaudit && useradd  -u 500 -g 500 -s /bin/bash secaudit && install -m 700 -o secaudit -g secaudit -d /home/secaudit
 
-RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y bc openssh-server sudo syslog-ng net-tools auditd
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y openssh-server sudo syslog-ng net-tools auditd
 
 COPY --chown=500:500 . /opt/debian-cis/
 

tests/docker/Dockerfile.debian9

@@ -7,7 +7,7 @@ LABEL description="This image is used to run tests"
 
 RUN groupadd -g 500 secaudit && useradd  -u 500 -g 500 -s /bin/bash secaudit && install -m 700 -o secaudit -g secaudit -d /home/secaudit
 
-RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y bc openssh-server sudo syslog-ng net-tools auditd
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y openssh-server sudo syslog-ng net-tools auditd
 
 COPY --chown=500:500 . /opt/debian-cis/