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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>
110 lines
3.4 KiB
Bash
Executable File
110 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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# run-shellcheck
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#
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# OVH Security audit
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#
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#
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# Check there are no carte-blanche authorization in sudoers file(s).
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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="Checks there are no carte-blanche authorization in sudoers file(s)."
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FILE="/etc/sudoers"
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DIRECTORY="/etc/sudoers.d"
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# spaces will be expanded to [[:space:]]* when using the regex
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# improves readability in audit report
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REGEX="ALL = \( ALL( : ALL)? \)( NOPASSWD:)? ALL"
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EXCEPT=""
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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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# expand spaces to [[:space:]]*
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# shellcheck disable=2001
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REGEX="$(echo "$REGEX" | sed 's/ /[[:space:]]*/g')"
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matched_files=""
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# check for pattern in $FILE
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if $SUDO_CMD grep -Eq "$REGEX" "$FILE"; then
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# Will log/warn below, once we've scanned everything,
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# because we must also check for patterns that are excused
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matched_files="$FILE"
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elif [ $? -gt 1 ]; then
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# ret > 1 means other grep error we must report
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crit "Couldn't grep for pattern in $FILE"
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else
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# no match, it's ok
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:
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fi
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# check for pattern in whole $DIRECTORY
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if $SUDO_CMD [ ! -d "$DIRECTORY" ]; then
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debug "$DIRECTORY does not exist"
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elif $SUDO_CMD [ ! -x "$DIRECTORY" ]; then
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crit "Cannot browse $DIRECTORY"
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else
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info "Will check for $($SUDO_CMD ls -f "$DIRECTORY" | wc -l) files within $DIRECTORY"
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matched_files="$matched_files $($SUDO_CMD grep -REl "$REGEX" "$DIRECTORY" || true)"
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fi
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# now check for pattern exceptions, and crit for each file otherwise
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for file in $matched_files; do
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RET=$($SUDO_CMD grep -E "$REGEX" "$file" | sed 's/\t/#/g;s/ /#/g')
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for line in $RET; do
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if grep -q "$(echo "$line" | cut -d '#' -f 1)" <<<"$EXCEPT"; then
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# shellcheck disable=2001
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ok "$(echo "$line" | sed 's/#/ /g') is present in $file but was EXCUSED because $(echo "$line" | cut -d '#' -f 1) is part of exceptions."
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continue
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fi
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# shellcheck disable=2001
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crit "$(echo "$line" | sed 's/#/ /g') is present in $file"
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done
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done
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}
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# This function will be called if the script status is on enabled mode
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apply() {
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:
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}
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# This function will create the config file for this check with default values
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create_config() {
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cat <<EOF
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status=audit
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# Put EXCEPTION account names here, space separated
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EXCEPT="root %root %sudo %wheel"
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EOF
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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# shellcheck source=../../debian/default
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. /etc/default/cis-hardening
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fi
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if [ -z "$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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