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fix EXCEPTIONS management (#104)

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* FIX(1.1.21, 6.1.10) fix EXCEPTIONS management
* Update changelog
* Refactor test for 6.1.10-14
This commit is contained in:
Thibault Ayanides
2021-06-02 13:47:19 +02:00
committed by GitHub
parent 4ed8adf790
commit 334d743125
11 changed files with 118 additions and 131 deletions
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58
bin/hardening/1.1.21_sticky_bit_world_writable_folder.sh
View File

@ -23,21 +23,14 @@ EXCEPTIONS=''
audit() {
info "Checking if setuid is set on world writable Directories"
FS_NAMES=$(df --local -P | awk '{if (NR!=1) print $6}')
# shellcheck disable=SC2086
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print 2>/dev/null)
IFS_BAK=$IFS
IFS=$'\n'
for LINE in $RESULT; do
debug "line : $LINE"
if echo "$EXCEPTIONS" | grep -q "$LINE"; then
debug "$LINE is confirmed as an exception"
# shellcheck disable=SC2001
RESULT=$(sed "s!$LINE!!" <<<"$RESULT")
else
debug "$LINE not found in exceptions"
fi
done
IFS=$IFS_BAK
if [ -n "$EXCEPTIONS" ]; then
# shellcheck disable=SC2086
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -regextype 'egrep' ! -regex $EXCEPTIONS -print 2>/dev/null)
else
# shellcheck disable=SC2086
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print 2>/dev/null)
fi
if [ -n "$RESULT" ]; then
crit "Some world writable directories are not on sticky bit mode!"
# shellcheck disable=SC2001
@ -50,20 +43,13 @@ audit() {
# This function will be called if the script status is on enabled mode
apply() {
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print 2>/dev/null)
IFS_BAK=$IFS
IFS=$'\n'
for LINE in $RESULT; do
debug "line : $LINE"
if echo "$EXCEPTIONS" | grep -q "$ACCOUNT"; then
debug "$ACCOUNT is confirmed as an exception"
# shellcheck disable=SC2001
RESULT=$(sed "s!$LINE!!" <<<"$RESULT")
else
debug "$ACCOUNT not found in exceptions"
fi
done
IFS=$IFS_BAK
if [ -n "$EXCEPTIONS" ]; then
# shellcheck disable=SC2086
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -regextype 'egrep' ! -regex $EXCEPTIONS -print 2>/dev/null)
else
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print 2>/dev/null)
fi
if [ -n "$RESULT" ]; then
warn "Setting sticky bit on world writable directories"
df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -type d -perm -0002 2>/dev/null | xargs chmod a+t
@ -72,20 +58,10 @@ apply() {
fi
}
# This function will create the config file for this check with default values
create_config() {
cat <<EOF
status=audit
# Put here your exceptions separated by spaces
EXCEPTIONS=""
EOF
}
# This function will check config parameters required
check_config() {
if [ -z "$EXCEPTIONS" ]; then
EXCEPTIONS="@"
fi
# No param for this function
:
}
# Source Root Dir Parameter

61
bin/hardening/6.1.10_find_world_writable_file.sh
View File

@ -17,27 +17,21 @@ HARDENING_LEVEL=3
# shellcheck disable=2034
DESCRIPTION="Ensure no world writable files exist"
EXCEPTIONS=''
EXCLUDED=''
# This function will be called if the script status is on enabled / audit mode
audit() {
info "Checking if there are world writable files"
FS_NAMES=$(df --local -P | awk '{if (NR!=1) print $6}')
# shellcheck disable=SC2086
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -type f -perm -0002 -print 2>/dev/null)
IFS_BAK=$IFS
IFS=$'\n'
for LINE in $RESULT; do
debug "line : $LINE"
if echo "$EXCEPTIONS" | grep -q "$LINE"; then
debug "$LINE is confirmed as an exception"
# shellcheck disable=SC2001
RESULT=$(sed "s!$LINE!!" <<<"$RESULT")
else
debug "$LINE not found in exceptions"
fi
done
IFS=$IFS_BAK
if [ -n "$EXCLUDED" ]; then
# shellcheck disable=SC2086
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -type f -perm -0002 -regextype 'egrep' ! -regex $EXCLUDED -print 2>/dev/null)
else
# shellcheck disable=SC2086
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -type f -perm -0002 -print 2>/dev/null)
fi
if [ -n "$RESULT" ]; then
crit "Some world writable files are present"
# shellcheck disable=SC2001
@ -50,20 +44,13 @@ audit() {
# This function will be called if the script status is on enabled mode
apply() {
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -type f -perm -0002 -print 2>/dev/null)
IFS_BAK=$IFS
IFS=$'\n'
for LINE in $RESULT; do
debug "line : $LINE"
if echo "$EXCEPTIONS" | grep -q "$ACCOUNT"; then
debug "$ACCOUNT is confirmed as an exception"
# shellcheck disable=SC2001
RESULT=$(sed "s!$LINE!!" <<<"$RESULT")
else
debug "$ACCOUNT not found in exceptions"
fi
done
IFS=$IFS_BAK
if [ -n "$EXCLUDED" ]; then
# shellcheck disable=SC2086
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -type f -perm -0002 -regextype 'egrep' ! -regex $EXCLUDED -print 2>/dev/null)
else
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -type f -perm -0002 -print 2>/dev/null)
fi
if [ -n "$RESULT" ]; then
warn "chmoding o-w all files in the system"
df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -type f -perm -0002 -print 2>/dev/null | xargs chmod o-w
@ -72,20 +59,10 @@ apply() {
fi
}
# This function will create the config file for this check with default values
create_config() {
cat <<EOF
status=audit
# Put here your exceptions separated by spaces
EXCEPTIONS=""
EOF
}
# This function will check config parameters required
check_config() {
if [ -z "$EXCEPTIONS" ]; then
EXCEPTIONS="@"
fi
# No param for this function
:
}
# Source Root Dir Parameter

5
bin/hardening/6.1.11_find_unowned_files.sh
View File

@ -26,7 +26,7 @@ audit() {
FS_NAMES=$(df --local -P | awk '{if (NR!=1) print $6}')
if [ -n "$EXCLUDED" ]; then
# shellcheck disable=SC2086
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -nouser -regextype 'egrep' ! -regex "$EXCLUDED" -print 2>/dev/null)
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -nouser -regextype 'egrep' ! -regex $EXCLUDED -print 2>/dev/null)
else
# shellcheck disable=SC2086
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -nouser -print 2>/dev/null)
@ -44,7 +44,8 @@ audit() {
# This function will be called if the script status is on enabled mode
apply() {
if [ -n "$EXCLUDED" ]; then
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -nouser -regextype 'egrep' ! -regex "$EXCLUDED" -ls 2>/dev/null)
# shellcheck disable=SC2086
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -nouser -regextype 'egrep' ! -regex $EXCLUDED -ls 2>/dev/null)
else
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -nouser -ls 2>/dev/null)
fi

5
bin/hardening/6.1.12_find_ungrouped_files.sh
View File

@ -26,7 +26,7 @@ audit() {
FS_NAMES=$(df --local -P | awk '{if (NR!=1) print $6}')
if [ -n "$EXCLUDED" ]; then
# shellcheck disable=SC2086
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -nogroup -regextype 'egrep' ! -regex "$EXCLUDED" -print 2>/dev/null)
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -nogroup -regextype 'egrep' ! -regex $EXCLUDED -print 2>/dev/null)
else
# shellcheck disable=SC2086
RESULT=$($SUDO_CMD find $FS_NAMES -xdev -nogroup -print 2>/dev/null)
@ -44,7 +44,8 @@ audit() {
# This function will be called if the script status is on enabled mode
apply() {
if [ -n "$EXCLUDED" ]; then
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -nogroup -regextype 'egrep' ! -regex "$EXCLUDED" -ls 2>/dev/null)
# shellcheck disable=SC2086
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -nogroup -regextype 'egrep' ! -regex $EXCLUDED -ls 2>/dev/null)
else
RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -nogroup -ls 2>/dev/null)
fi

2
bin/hardening/6.1.13_find_suid_files.sh
View File

@ -24,7 +24,7 @@ audit() {
FS_NAMES=$(df --local -P | awk '{ if (NR!=1) print $6 }')
# shellcheck disable=2086
if [ -n "$IGNORED_PATH" ]; then
FOUND_BINARIES=$($SUDO_CMD find $FS_NAMES -xdev -type f -perm -4000 -regextype 'egrep' ! -regex "$IGNORED_PATH" -print)
FOUND_BINARIES=$($SUDO_CMD find $FS_NAMES -xdev -type f -perm -4000 -regextype 'egrep' ! -regex $IGNORED_PATH -print)
else
FOUND_BINARIES=$($SUDO_CMD find $FS_NAMES -xdev -type f -perm -4000 -print)
fi

2
bin/hardening/6.1.14_find_sgid_files.sh
View File

@ -24,7 +24,7 @@ audit() {
FS_NAMES=$(df --local -P | awk '{ if (NR!=1) print $6 }')
# shellcheck disable=2086
if [ -n "$IGNORED_PATH" ]; then
FOUND_BINARIES=$($SUDO_CMD find $FS_NAMES -xdev -type f -perm -2000 -regextype 'egrep' ! -regex "$IGNORED_PATH" -print)
FOUND_BINARIES=$($SUDO_CMD find $FS_NAMES -xdev -type f -perm -2000 -regextype 'egrep' ! -regex $IGNORED_PATH -print)
else
FOUND_BINARIES=$($SUDO_CMD find $FS_NAMES -xdev -type f -perm -2000 -print)
fi