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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>
94 lines
3.0 KiB
Bash
Executable File
94 lines
3.0 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 that passwords in /etc/shadow are sha512crypt (or yescrypt for Debian 11+) hashed and salted
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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="Check that passwords in /etc/shadow are sha512crypt (or yescrypt for Debian 11+) hashed and salted"
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FILE="/etc/shadow"
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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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# Review shadow file for existing passwords
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pw_found=""
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users_reviewed=""
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if $SUDO_CMD [ ! -r "$FILE" ]; then
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crit "$FILE is not readable"
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return
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fi
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for line in $($SUDO_CMD cut -d ":" -f 1,2 /etc/shadow); do
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users_reviewed+="$line "
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user=$(echo "$line" | cut -d ":" -f 1)
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passwd=$(echo "$line" | cut -d ":" -f 2)
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if [[ $passwd = '!' || $passwd = '*' ]]; then
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continue
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elif [[ $passwd =~ ^!.*$ ]]; then
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pw_found+="$user "
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ok "User $user has a disabled password."
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# yescrypt: Check password against $y$<salt>$<base64>
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elif [ "$DEB_MAJ_VER" -ge "11" ] && [[ $passwd =~ ^\$y\$[./A-Za-z0-9]+\$[./A-Za-z0-9]{,86}\$[./A-Za-z0-9]{43} ]]; then
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pw_found+="$user "
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ok "User $user has suitable yescrypt hashed password."
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# sha512: Check password against $6$<salt>$<base64>, see `man 3 crypt`
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elif [[ $passwd =~ ^\$6(\$rounds=[0-9]+)?\$[a-zA-Z0-9./]{2,16}\$[a-zA-Z0-9./]{86}$ ]]; then
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pw_found+="$user "
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ok "User $user has suitable sha512crypt hashed password."
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else
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pw_found+="$user "
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if [ "$DEB_MAJ_VER" -ge "11" ]; then
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crit "User $user has a password that is not sha512crypt nor yescrypt hashed."
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else
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crit "User $user has a password that is not sha512crypt hashed."
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fi
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fi
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done
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if [[ -z "$users_reviewed" ]]; then
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crit "No users were reviewed in $FILE !"
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return
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fi
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if [[ -z "$pw_found" ]]; then
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ok "There is no password in $FILE"
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fi
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}
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# This function will be called if the script status is on enabled mode
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apply() {
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:
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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# shellcheck source=../../debian/default
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. /etc/default/cis-hardening
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fi
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if [ -z "$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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