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be33848d81
* feat: add "--set-version" option This feature will allow to chose a specific cis version to run, like debian 11 or debian 12 * chore: configure current repository as a version And use it as default version. To this end, the scripts in bin/hardening have been made generic by removing the associated recommendation number. Only impact is if you are used to execute scripts directly from bin/hardening. In this case, please use the "bin/hardening.sh" wrapper as intended. I had to rename 2.3.1_disable_nis.sh to uninstall_nis.sh, as it was conflicting with 2.3.1_disable_nis.sh Also, there was a doublon between 1.1.1.8_disable_cramfs.sh and 99.1.1.1_disable_cramfs.sh ; the former was kept * chore: remove CIS recommendation numbers from bin/hardening scripts * fix: some tests are failing find_ungrouped_files.sh and find_unowned_files.sh tests can not be executed multiple times: - test repository is not cleaned - configuration is updated multiple times Those tests are also failing, because: - the sed to change the status in the configuration was also changing the test folder path. - missing /proc in EXCLUDED paths - the EXCLUDED configuration doesn't have the correct format for egrep --------- Co-authored-by: Damien Cavagnini <damien.cavagnini@corp.ovh.com>
133 lines
4.4 KiB
Bash
Executable File
133 lines
4.4 KiB
Bash
Executable File
#!/bin/bash
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# run-shellcheck
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#
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# CIS Debian Hardening Bonus Check
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#
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#
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# Disable USB Devices
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#
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set -e # One error, it's over
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set -u # One variable unset, it's over
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USER='root'
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# shellcheck disable=2034
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HARDENING_LEVEL=2
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# shellcheck disable=2034
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DESCRIPTION="USB devices are disabled."
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PATTERN='ACTION=="add", SUBSYSTEMS=="usb", TEST=="authorized_default", ATTR{authorized_default}="0"' # We do test disabled by default, whitelist is up to you
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FILES_TO_SEARCH='/etc/udev/rules.d'
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FILE='/etc/udev/rules.d/10-CIS_99.2_usb_devices.sh'
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# This function will be called if the script status is on enabled / audit mode
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audit() {
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SEARCH_RES=0
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# if SC2086 is fixed (double quotes) instead of skipped, then shellcheck will complain that double quotes will prevent the loop (SC2066)
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# shellcheck disable=SC2086
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for FILE_SEARCHED in $FILES_TO_SEARCH; do
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if [ "$SEARCH_RES" = 1 ]; then break; fi
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if $SUDO_CMD test -d "$FILE_SEARCHED"; then
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debug "$FILE_SEARCHED is a directory"
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for file_in_dir in $($SUDO_CMD ls $FILE_SEARCHED); do
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does_pattern_exist_in_file "$FILE_SEARCHED/$file_in_dir" "^$PATTERN"
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if [ "$FNRET" != 0 ]; then
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debug "$PATTERN is not present in $FILE_SEARCHED/$file_in_dir"
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else
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ok "$PATTERN is present in $FILE_SEARCHED/$file_in_dir"
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SEARCH_RES=1
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break
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fi
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done
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else
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does_pattern_exist_in_file "$FILE_SEARCHED" "^$PATTERN"
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if [ "$FNRET" != 0 ]; then
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debug "$PATTERN is not present in $FILE_SEARCHED"
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else
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ok "$PATTERN is present in $FILES_TO_SEARCH"
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SEARCH_RES=1
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fi
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fi
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done
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if [ "$SEARCH_RES" = 0 ]; then
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crit "$PATTERN is not present in $FILES_TO_SEARCH"
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fi
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}
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# This function will be called if the script status is on enabled mode
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apply() {
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SEARCH_RES=0
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for FILE_SEARCHED in $FILES_TO_SEARCH; do
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if [ "$SEARCH_RES" = 1 ]; then break; fi
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if test -d "$FILE_SEARCHED"; then
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debug "$FILE_SEARCHED is a directory"
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for file_in_dir in "$FILE_SEARCHED"/*; do
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[[ -e "$file_in_dir" ]] || break # handle the case of no file in dir
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does_pattern_exist_in_file "$file_in_dir" "^$PATTERN"
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if [ "$FNRET" != 0 ]; then
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debug "$PATTERN is not present in $file_in_dir"
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else
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ok "$PATTERN is present in $file_in_dir"
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SEARCH_RES=1
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break
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fi
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done
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else
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does_pattern_exist_in_file "$FILE_SEARCHED" "^$PATTERN"
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if [ "$FNRET" != 0 ]; then
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debug "$PATTERN is not present in $FILE_SEARCHED"
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else
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ok "$PATTERN is present in $FILES_TO_SEARCH"
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SEARCH_RES=1
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fi
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fi
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done
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if [ "$SEARCH_RES" = 0 ]; then
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warn "$PATTERN is not present in $FILES_TO_SEARCH"
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touch "$FILE"
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chmod 644 "$FILE"
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add_end_of_file "$FILE" '
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# By default, disable all.
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ACTION=="add", SUBSYSTEMS=="usb", TEST=="authorized_default", ATTR{authorized_default}="0"
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# Enable hub devices.
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ACTION=="add", ATTR{bDeviceClass}=="09", TEST=="authorized", ATTR{authorized}="1"
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# Enables keyboard devices
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ACTION=="add", ATTR{product}=="*[Kk]eyboard*", TEST=="authorized", ATTR{authorized}="1"
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# PS2-USB converter
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ACTION=="add", ATTR{product}=="*Thinnet TM*", TEST=="authorized", ATTR{authorized}="1"
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'
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fi
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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# shellcheck source=../../debian/default
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. /etc/default/cis-hardening
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fi
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if [ -z "$CIS_LIB_DIR" ]; then
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echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
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echo "Cannot source CIS_LIB_DIR variable, aborting."
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exit 128
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fi
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# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
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if [ -r "${CIS_LIB_DIR}"/main.sh ]; then
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# shellcheck source=../../lib/main.sh
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. "${CIS_LIB_DIR}"/main.sh
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else
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echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_LIB_DIR in /etc/default/cis-hardening"
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exit 128
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fi
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