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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>
104 lines
3.1 KiB
Bash
Executable File
104 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
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# run-shellcheck
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#
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# CIS Debian Hardening
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#
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#
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# Ensure core dumps are restricted (Scored)
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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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# shellcheck disable=2034
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HARDENING_LEVEL=2
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# shellcheck disable=2034
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DESCRIPTION="Restrict core dumps."
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LIMIT_FILE='/etc/security/limits.conf'
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LIMIT_DIR='/etc/security/limits.d'
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LIMIT_PATTERN='^\*[[:space:]]*hard[[:space:]]*core[[:space:]]*0$'
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SYSCTL_PARAM='fs.suid_dumpable'
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SYSCTL_EXP_RESULT=0
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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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LIMIT_FILES=""
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if $SUDO_CMD [ -d "$LIMIT_DIR" ]; then
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for file in $($SUDO_CMD ls "$LIMIT_DIR"/*.conf 2>/dev/null); do
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LIMIT_FILES="$LIMIT_FILES $file"
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done
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fi
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debug "Files to search $LIMIT_FILE $LIMIT_FILES"
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for file in $LIMIT_FILE $LIMIT_FILES; do
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does_pattern_exist_in_file "$file" "$LIMIT_PATTERN"
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if [ "$FNRET" != 0 ]; then
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debug "$LIMIT_PATTERN not present in $file"
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else
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ok "$LIMIT_PATTERN present in $file"
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SEARCH_RES=1
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break
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fi
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done
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if [ "$SEARCH_RES" = 0 ]; then
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crit "$LIMIT_PATTERN is not present in $LIMIT_FILE $LIMIT_FILES"
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fi
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has_sysctl_param_expected_result "$SYSCTL_PARAM" "$SYSCTL_EXP_RESULT"
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if [ "$FNRET" != 0 ]; then
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crit "$SYSCTL_PARAM was not set to $SYSCTL_EXP_RESULT"
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elif [ "$FNRET" = 255 ]; then
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warn "$SYSCTL_PARAM does not exist -- Typo?"
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else
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ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
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fi
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}
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# This function will be called if the script status is on enabled mode
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apply() {
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does_pattern_exist_in_file "$LIMIT_FILE" "$LIMIT_PATTERN"
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if [ "$FNRET" != 0 ]; then
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warn "$LIMIT_PATTERN not present in $LIMIT_FILE, adding at the end of $LIMIT_FILE"
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add_end_of_file $LIMIT_FILE "* hard core 0"
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else
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ok "$LIMIT_PATTERN present in $LIMIT_FILE"
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fi
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has_sysctl_param_expected_result "$SYSCTL_PARAM" "$SYSCTL_EXP_RESULT"
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if [ "$FNRET" != 0 ]; then
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warn "$SYSCTL_PARAM was not set to $SYSCTL_EXP_RESULT -- Fixing"
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set_sysctl_param "$SYSCTL_PARAM" "$SYSCTL_EXP_RESULT"
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elif [ "$FNRET" = 255 ]; then
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warn "$SYSCTL_PARAM does not exist -- Typo?"
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else
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ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
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fi
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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# shellcheck source=../../debian/default
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. /etc/default/cis-hardening
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fi
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if [ -z "$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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