mirror of
https://github.com/ovh/debian-cis.git
synced 2025-08-04 14:21:15 +02:00
c22ce20f9d
- auditd_logs_full_halt.sh -> 6.3.2.3 - systemd_journal_upload_remote_auth.sh -> 6.2.1.2.2 - sudo_auth_timeout.sh -> 5.2.6 - libpam_modules_is_installed.sh -> 5.3.1.2 - ufw_not_installed_with_nftables.sh -> 4.2.2 - ufw_not_installed_with_iptables.sh -> 4.3.1.3
94 lines
2.8 KiB
Bash
Executable File
94 lines
2.8 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 sudo authentication timeout is configured correctly (Automated)
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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=3
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# shellcheck disable=2034
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DESCRIPTION="Ensure sudo authentication timeout is configured correctly"
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TIMEOUT_VALUE=15
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# This function will be called if the script status is on enabled / audit mode
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# shellcheck disable=2120
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audit() {
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SUDO_TIMEOUT_IS_VALID=0
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local timestamp_timeout
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local sudo_files
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sudo_files="/etc/sudoers $(find /etc/sudoers.d -type f ! -name README | paste -s)"
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# shellcheck disable=2016
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# shellcheck disable=2086
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timestamp_timeout=$($SUDO_CMD awk -F '=' '/timestamp_timeout/ {print $2}' $sudo_files)
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if [ "$(wc -l <<<"$timestamp_timeout")" -eq 0 ]; then
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# look for the default
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# shellcheck disable=2016
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timestamp_timeout=$(sudo -V | awk -F ':' '/Authentication timestamp timeout/ {print $2}' | sed -e 's/\..*$//' -e 's/\ //g')
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if [ "$timestamp_timeout" -le "$TIMEOUT_VALUE" ]; then
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ok "sudo timestamp timeout is $timestamp_timeout"
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else
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crit "sudo timestamp timeout is $timestamp_timeout"
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SUDO_TIMEOUT_IS_VALID=1
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fi
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else
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for timeout in $timestamp_timeout; do
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if [ "$timeout" -le "$TIMEOUT_VALUE" ]; then
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ok "sudo timestamp timeout is $timeout"
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else
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crit "sudo timestamp timeout is $timeout"
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SUDO_TIMEOUT_IS_VALID=1
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fi
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done
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fi
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}
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# This function will be called if the script status is on enabled mode
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apply() {
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audit
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if [ "$SUDO_TIMEOUT_IS_VALID" -ne 0 ]; then
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sudo_files="/etc/sudoers $(find /etc/sudoers.d -type f ! -name README | paste -s)"
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for file in $sudo_files; do
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delete_line_in_file "$file" "timestamp_timeout"
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done
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add_end_of_file /etc/sudoers "Defaults timestamp_timeout=$TIMEOUT_VALUE"
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fi
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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# shellcheck source=../../debian/default
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. /etc/default/cis-hardening
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fi
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if [ -z "$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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