[BESAdmin-Announcements] BigFix Compliance: Updated CIS Checklist for Debian Linux 12, published 2025-08-19
Announcements for BES Administrators
besadmin-announcements at bigmail.bigfix.com
Tue Aug 19 09:38:20 PDT 2025
*Product:*
BigFix Compliance
*Title:*
Updated CIS Checklist for Debian Linux 12
*Security Benchmark:*
CIS Debian Linux 12 Benchmark, v1.1.0
*Published Sites:*
CIS Checklist for Debian Linux 12, site version 3
(The site version is provided for air-gap customers.)
*Details:*
● Total New Fixlets: 33
● Total Updated Fixlets: 193
● Total Deleted Fixlets: 19
● Total Fixlets in Site: 299
*New Fixlets :*
● Ensure overlayfs kernel module is not available
● Ensure unused filesystems kernel modules are not available
● Ensure XDMCP is not enabled
● Ensure a single firewall utility
● Ensure a single firewall configuration utility is in use
● Ensure nftables is not in use with iptables
● Ensure ufw is not in use with iptables
● Ensure minimum password days is configured
● Ensure root account access is controlled
● Ensure only one logging system is in use
● Ensure systemd-journal-upload authentication is configured
● Ensure rsyslog
● Ensure rsyslog is installed
● Ensure rsyslog service is enabled and active
● Ensure journald is configured to send logs to rsyslog
● Ensure rsyslog log file creation mode is configured
● Ensure rsyslog logging is configured
● Ensure rsyslog is configured to send logs to a remote log host
● Ensure rsyslog is not configured to receive logs from a remote client
● Ensure logrotate is configured
● Ensure auditd packages are installed
● Ensure successful and unsuccessful attempts to use the chcon command
are collected
● Ensure successful and unsuccessful attempts to use the setfacl
command are collected
● Ensure successful and unsuccessful attempts to use the chacl command
are collected
● Ensure successful and unsuccessful attempts to use the usermod
command are collected
● Ensure audit log files owner is configured
● Ensure audit log files group owner is configured
● Ensure the audit log file directory mode is configured
● Ensure audit configuration files owner is configured
● Ensure audit configuration files group owner is configured
● Ensure audit tools owner is configured
● Ensure audit tools group owner is configured
● Ensure cryptographic mechanisms are used to protect the integrity of
audit tools
*Modified Fixlets:*
● Ensure cramfs kernel module is not available
● Ensure freevxfs kernel module is not available
● Ensure hfs kernel module is not available
● Ensure hfsplus kernel module is not available
● Ensure jffs2 kernel module is not available
● Ensure squashfs kernel module is not available
● Ensure udf kernel module is not available
● Ensure usb-storage kernel module is not available
● Ensure /tmp is a separate partition
● Ensure separate partition exists for /home
● Ensure nodev option set on /home partition
● Ensure nosuid option set on /home partition
● Ensure separate partition exists for /var
● Ensure nodev option set on /var partition
● Ensure nosuid option set on /var partition
● Ensure separate partition exists for /var/tmp
● Ensure nodev option set on /var/tmp partition
● Ensure nosuid option set on /var/tmp partition
● Ensure noexec option set on /var/tmp partition
● Ensure separate partition exists for /var/log
● Ensure nodev option set on /var/log partition
● Ensure nosuid option set on /var/log partition
● Ensure noexec option set on /var/log partition
● Ensure separate partition exists for /var/log/audit
● Ensure nodev option set on /var/log/audit partition
● Ensure nosuid option set on /var/log/audit partition
● Ensure noexec option set on /var/log/audit partition
● Ensure GPG keys are configured
● Ensure AppArmor is installed
● Ensure AppArmor is enabled in the bootloader configuration
● Ensure all AppArmor Profiles are in enforce or complain mode
● Ensure all AppArmor Profiles are enforcing
● Ensure bootloader password is set
● Ensure address space layout randomization is enabled
● Ensure ptrace_scope is restricted
● Ensure core dumps are restricted
● Ensure GDM is removed
● Ensure GDM login banner is configured
● Ensure GDM disable-user-list option is enabled
● Ensure GDM screen locks when the user is idle
● Ensure GDM screen locks cannot be overridden
● Ensure GDM automatic mounting of removable media is disabled
● Ensure GDM disabling automatic mounting of removable media is not
overridden
● Ensure GDM autorun-never is enabled
● Ensure GDM autorun-never is not overridden
● Ensure autofs services are not in use
● Ensure avahi daemon services are not in use
● Ensure dhcp server services are not in use
● Ensure dns server services are not in use
● Ensure dnsmasq services are not in use
● Ensure ftp server services are not in use
● Ensure ldap server services are not in use
● Ensure message access server services are not in use
● Ensure network file system services are not in use
● Ensure nis server services are not in use
● Ensure print server services are not in use
● Ensure rpcbind services are not in use
● Ensure rsync services are not in use
● Ensure samba file server services are not in use
● Ensure snmp services are not in use
● Ensure tftp server services are not in use
● Ensure web proxy server services are not in use
● Ensure web server services are not in use
● Ensure xinetd services are not in use
● Ensure X window server services are not in use
● Ensure mail transfer agent is configured for local-only mode
● Ensure NIS Client is not installed
● Ensure rsh client is not installed
● Ensure talk client is not installed
● Ensure telnet client is not installed
● Ensure ldap client is not installed
● Ensure ftp client is not installed
● Ensure a single time synchronization daemon is in use
● Ensure systemd-timesyncd configured with authorized timeserver
● Ensure systemd-timesyncd is enabled and running
● Ensure chrony is configured with authorized timeserver
● Ensure permissions on /etc/cron.weekly are configured
● Ensure permissions on /etc/cron.monthly are configured
● Ensure permissions on /etc/cron.d are configured
● Ensure crontab is restricted to authorized users
● Ensure at is restricted to authorized users
● Ensure IPv6 status is identified
● Ensure bluetooth services are not in use
● Ensure dccp kernel module is not available
● Ensure tipc kernel module is not available
● Ensure rds kernel module is not available
● Ensure sctp kernel module is not available
● Ensure ip forwarding is disabled
● Ensure packet redirect sending is disabled
● Ensure bogus icmp responses are ignored
● Ensure broadcast icmp requests are ignored
● Ensure icmp redirects are not accepted
● Ensure secure icmp redirects are not accepted
● Ensure reverse path filtering is enabled
● Ensure source routed packets are not accepted
● Ensure suspicious packets are logged
● Ensure tcp syn cookies is enabled
● Ensure ipv6 router advertisements are not accepted
● Ensure ufw is installed
● Ensure iptables-persistent is not installed with ufw
● Ensure ufw loopback traffic is configured
● Ensure ufw default deny firewall policy
● Ensure nftables is installed
● Ensure ufw is uninstalled or disabled with nftables
● Ensure a nftables table exists
● Ensure nftables loopback traffic is configured
● Ensure nftables outbound and established connections are configured
● Ensure nftables default deny firewall policy
● Ensure nftables rules are permanent
● Ensure iptables packages are installed
● Ensure iptables default deny firewall policy
● Ensure iptables loopback traffic is configured
● Ensure iptables outbound and established connections are configured
● Ensure iptables firewall rules exist for all open ports
● Ensure ip6tables default deny firewall policy
● Ensure ip6tables loopback traffic is configured
● Ensure ip6tables outbound and established connections are configured
● Ensure ip6tables firewall rules exist for all open ports
● Ensure permissions on /etc/ssh/sshd_config are configured
● Ensure permissions on SSH private host key files are configured
● Ensure permissions on SSH public host key files are configured
● Ensure sshd access is configured
● Ensure sshd Banner is configured
● Ensure sshd Ciphers are configured
● Ensure sshd ClientAliveInterval and ClientAliveCountMax are
configured
● Ensure sshd DisableForwarding is enabled
● Ensure sshd GSSAPIAuthentication is disabled
● Ensure sshd HostbasedAuthentication is disabled
● Ensure sshd IgnoreRhosts is enabled
● Ensure sshd KexAlgorithms is configured
● Ensure sshd LoginGraceTime is configured
● Ensure sshd LogLevel is configured
● Ensure sshd MACs are configured
● Ensure sshd MaxAuthTries is configured
● Ensure sshd MaxSessions is configured
● Ensure sshd MaxStartups is configured
● Ensure sshd PermitEmptyPasswords is disabled
● Ensure sshd PermitRootLogin is disabled
● Ensure sshd PermitUserEnvironment is disabled
● Ensure sshd UsePAM is enabled
● Ensure sudo is installed
● Ensure sudo commands use pty
● Ensure latest version of pam is installed
● Ensure libpam-modules is installed
● Ensure pam_unix module is enabled
● Ensure pam_faillock module is enabled
● Ensure pam_pwquality module is enabled
● Ensure pam_pwhistory module is enabled
● Ensure password failed attempts lockout is configured
● Ensure password unlock time is configured
● Ensure password failed attempts lockout includes root account
● Ensure password number of changed characters is configured
● Ensure minimum password length is configured
● Ensure password complexity is configured
● Ensure password same consecutive characters is configured
● Ensure password maximum sequential characters is configured
● Ensure password dictionary check is enabled
● Ensure pam_pwhistory includes use_authtok
● Ensure pam_unix does not include nullok
● Ensure pam_unix does not include remember
● Ensure password expiration is configured
● Ensure all users last password change date is in the past
● Ensure root user umask is configured
● Ensure nologin is not listed in /etc/shells
● Ensure default user umask is configured
● Ensure auditd service is enabled and active
● Ensure system is disabled when audit logs are full
● Ensure system warns when audit logs are low on space
● Ensure changes to system administration scope (sudoers) is collected
● Ensure actions as another user are always logged
● Ensure events that modify the sudo log file are collected
● Ensure events that modify date and time information are collected
● Ensure events that modify the system's network environment are
collected
● Ensure use of privileged commands are collected
● Ensure unsuccessful file access attempts are collected
● Ensure events that modify user/group information are collected
● Ensure discretionary access control permission modification events
are collected
● Ensure successful file system mounts are collected
● Ensure session initiation information is collected
● Ensure login and logout events are collected
● Ensure file deletion events by users are collected
● Ensure events that modify the system's Mandatory Access Controls are
collected
● Ensure kernel module loading unloading and modification is collected
● Ensure the audit configuration is immutable
● Ensure the running and on disk configuration is the same
● Ensure audit log files mode is configured
● Ensure audit configuration files mode is configured
● Ensure audit tools mode is configured
● Ensure AIDE is installed
● Ensure world writable files and directories are secured
● Ensure no files or directories without an owner and a group exist
● Ensure SUID and SGID files are reviewed
● Ensure local interactive user dot files access is configured
*Deleted Fixlets :*
● Ensure prelink is not installed
● Ensure XDCMP is not enabled
● Ensure nftables is not installed with iptables
● Ensure ufw is uninstalled or disabled with iptables
● Ensure minimum password age is configured
● Ensure root password is set
● Ensure systemd-journal-remote authentication is configured
● Ensure auditd is installed
● Ensure successful and unsuccessful attempts to use the chcon command
are recorded
● Ensure successful and unsuccessful attempts to use the setfacl
command are recorded
● Ensure successful and unsuccessful attempts to use the chacl command
are recorded
● Ensure successful and unsuccessful attempts to use the usermod
command are recorded
● Ensure only authorized users own audit log files
● Ensure only authorized groups are assigned ownership of audit log
files
● Ensure the audit log directory mode is configured
● Ensure audit configuration files are owned by root
● Ensure audit configuration files belong to group root
● Ensure audit tools are owned by root
● Ensure audit tools belong to group root
*Additional details:*
● Both analysis and remediation checks are included
● Some of the checks allow you to use the parameterized setting to
enable customization for compliance evaluation. Note that parameterization
and remediation actions require the creation of a custom site.
Improved few checks by adding the pending restart feature to them. The
pending restart feature works in the following ways:
● The action results will show “Pending Restart” instead of “Fixed”
for those checks which requires OS reboot.
● The check will show relevant for those endpoints until they are
rebooted.
● Post reboot of the endpoint the action results will show as “Fixed”
and the check will be compliant.
*Actions to take:*
● To subscribe to the above site, you can use the License Overview
Dashboard to enable and gather the site. Note that you must be entitled to
the BigFix Compliance product and you must be using BigFix version 10 and
later.
● If you use custom sites, update your custom sites accordingly to
use the latest content. You can synchronize your content by using the
Synchronize Custom Checks wizard. For more information, see Using the
Synchronize Custom Checks wizard
<https://help.hcltechsw.com/bigfix/11.0/compliance/Compliance/SCM_Users_Guide/c_using_synchronize_custom_checks_wiz.html>
*More information:*
To know more about the BigFix Compliance SCM checklists, please see the
following resources:
● BigFix Forum:
https://forum.bigfix.com/c/release-announcements/compliance
● BigFix Compliance SCM Checklists:
Welcome to Wikis
<https://bigfix-wiki.hcltechsw.com/wikis/home?lang=enus#!/wiki/BigFix%20Wiki/page/SCM%20Checklists>
We hope you find this latest release of SCM content useful and effective.
Thank you!
*– The BigFix Compliance team*
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://bigmail.bigfix.com/pipermail/besadmin-announcements/attachments/20250819/45613190/attachment.html>
More information about the Besadmin-announcements
mailing list