debian-cis/bin/hardening/99.1_timeout_tty.sh
Thibault Ayanides c17d04ecc2 IMP(shellcheck): comply with shellcheck rules
I added shellcheck prefixes to fix:
 * SC1091 (following sourced files)
 * SC2034 (unused variables)
2020-11-27 09:18:00 +01:00

122 lines
3.8 KiB
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#!/bin/bash
# run-shellcheck
#
# CIS Debian Hardening /!\ Not in the Guide
#
#
# 99.1 Set Timeout on ttys
#
set -e # One error, it's over
set -u # One variable unset, it's over
# shellcheck disable=2034
USER='root'
# shellcheck disable=2034
DESCRIPTION="Timeout 600 seconds on tty."
PATTERN='TMOUT='
VALUE='600'
FILES_TO_SEARCH='/etc/bash.bashrc /etc/profile.d /etc/profile'
FILE='/etc/profile.d/CIS_99.1_timeout.sh'
# This function will be called if the script status is on enabled / audit mode
audit () {
SEARCH_RES=0
for FILE_SEARCHED in $FILES_TO_SEARCH; do
if [ $SEARCH_RES = 1 ]; then break; fi
if test -d "$FILE_SEARCHED"; then
debug "$FILE_SEARCHED is a directory"
# shellcheck disable=2044
for file_in_dir in $(find "$FILE_SEARCHED" -type f); do
does_pattern_exist_in_file "$file_in_dir" "^$PATTERN"
if [ "$FNRET" != 0 ]; then
debug "$PATTERN is not present in $FILE_SEARCHED/$file_in_dir"
else
ok "$PATTERN is present in $FILE_SEARCHED/$file_in_dir"
SEARCH_RES=1
break
fi
done
else
does_pattern_exist_in_file "$FILE_SEARCHED" "^$PATTERN"
if [ "$FNRET" != 0 ]; then
debug "$PATTERN is not present in $FILE_SEARCHED"
else
ok "$PATTERN is present in $FILES_TO_SEARCH"
SEARCH_RES=1
fi
fi
done
if [ $SEARCH_RES = 0 ]; then
crit "$PATTERN is not present in $FILES_TO_SEARCH"
fi
}
# This function will be called if the script status is on enabled mode
apply () {
SEARCH_RES=0
for FILE_SEARCHED in $FILES_TO_SEARCH; do
if [ $SEARCH_RES = 1 ]; then break; fi
if test -d "$FILE_SEARCHED"; then
debug "$FILE_SEARCHED is a directory"
# shellcheck disable=2044
for file_in_dir in $(find "$FILE_SEARCHED" -type f); do
does_pattern_exist_in_file "$FILE_SEARCHED/$file_in_dir" "^$PATTERN"
if [ "$FNRET" != 0 ]; then
debug "$PATTERN is not present in $FILE_SEARCHED/$file_in_dir"
else
ok "$PATTERN is present in $FILE_SEARCHED/$file_in_dir"
SEARCH_RES=1
break
fi
done
else
does_pattern_exist_in_file "$FILE_SEARCHED" "^$PATTERN"
if [ "$FNRET" != 0 ]; then
debug "$PATTERN is not present in $FILE_SEARCHED"
else
ok "$PATTERN is present in $FILES_TO_SEARCH"
SEARCH_RES=1
fi
fi
done
if [ $SEARCH_RES = 0 ]; then
warn "$PATTERN is not present in $FILES_TO_SEARCH"
touch $FILE
chmod 644 $FILE
add_end_of_file $FILE "$PATTERN$VALUE"
add_end_of_file $FILE "readonly TMOUT"
add_end_of_file $FILE "export TMOUT"
else
ok "$PATTERN is present in $FILES_TO_SEARCH"
fi
}
# This function will check config parameters required
check_config() {
:
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
# shellcheck source=../../debian/default
. /etc/default/cis-hardening
fi
if [ -z "$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