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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>
98 lines
3.3 KiB
Bash
Executable File
98 lines
3.3 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 no unowned files or directories exist (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="Ensure no unowned files or directories exist."
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USER='root'
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EXCLUDED=''
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# find emits following error if directory or file disappear during
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# tree traversal: find: ‘/tmp/xxx’: No such file or directory
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FIND_IGNORE_NOSUCHFILE_ERR=false
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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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info "Checking if there are unowned files"
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if [ -n "$EXCLUDED" ]; then
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# maybe EXCLUDED allow us to filter out some FS
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FS_NAMES=$(df --local -P | awk '{if (NR!=1) print $6}' | grep -vE "$EXCLUDED")
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[ "${FIND_IGNORE_NOSUCHFILE_ERR}" = true ] && set +e
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# shellcheck disable=SC2086
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RESULT=$($SUDO_CMD find $FS_NAMES -xdev -ignore_readdir_race -nouser -regextype 'egrep' ! -regex $EXCLUDED -print 2>/dev/null)
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[ "${FIND_IGNORE_NOSUCHFILE_ERR}" = true ] && set -e
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else
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FS_NAMES=$(df --local -P | awk '{if (NR!=1) print $6}')
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[ "${FIND_IGNORE_NOSUCHFILE_ERR}" = true ] && set +e
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# shellcheck disable=SC2086
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RESULT=$($SUDO_CMD find $FS_NAMES -xdev -ignore_readdir_race -nouser -print 2>/dev/null)
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[ "${FIND_IGNORE_NOSUCHFILE_ERR}" = true ] && set -e
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fi
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if [ -n "$RESULT" ]; then
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crit "Some unowned files are present"
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# shellcheck disable=SC2001
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FORMATTED_RESULT=$(sed "s/ /\n/g" <<<"$RESULT" | sort | uniq | tr '\n' ' ')
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crit "$FORMATTED_RESULT"
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else
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ok "No unowned files found"
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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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if [ -n "$EXCLUDED" ]; then
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# shellcheck disable=SC2086
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RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | grep -vE "$EXCLUDED" | xargs -I '{}' find '{}' -xdev -ignore_readdir_race -nouser -regextype 'egrep' ! -regex "$EXCLUDED" -ls 2>/dev/null)
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else
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RESULT=$(df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -ignore_readdir_race -nouser -ls 2>/dev/null)
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fi
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if [ -n "$RESULT" ]; then
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warn "Applying chown on all unowned files in the system"
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df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -ignore_readdir_race -nouser -print 2>/dev/null | xargs chown "$USER"
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else
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ok "No unowned files found, nothing to apply"
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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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# No param for this function
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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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