DRAFT - CIS Red Hat Enterprise Linux 10 Benchmark for Level 2 - Server
Rules and Groups employed by this XCCDF Profile
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Set SSH Daemon LogLevel to VERBOSE
The <code>VERBOSE</code> parameter configures the SSH daemon to record login and logout activity. To specify the log level in SSH, add or correct t...Rule Medium Severity -
Set SSH authentication attempt limit
The <code>MaxAuthTries</code> parameter specifies the maximum number of authentication attempts permitted per connection. Once the number of failur...Rule Medium Severity -
Set SSH MaxSessions limit
The <code>MaxSessions</code> parameter specifies the maximum number of open sessions permitted from a given connection. To set MaxSessions edit <co...Rule Medium Severity -
Ensure SSH MaxStartups is configured
The MaxStartups parameter specifies the maximum number of concurrent unauthenticated connections to the SSH daemon. Additional connections will be ...Rule Medium Severity -
Use Only Strong Key Exchange algorithms
Limit the Key Exchange to strong algorithms. The following line in <code>/etc/ssh/sshd_config</code> demonstrates use of those: <pre>KexAlgorithms ...Rule Medium Severity -
Use Only Strong MACs
Limit the MACs to strong hash algorithms. The following line in <code>/etc/ssh/sshd_config</code> demonstrates use of those MACs: <pre>MACs <xccdf-...Rule Medium Severity -
X Window System
The X Window System implementation included with the system is called X.org.Group -
Disable X Windows
Unless there is a mission-critical reason for the system to run a graphical user interface, ensure X is not set to start automatically at boot and ...Group -
Remove the X Windows Package Group
By removing the xorg-x11-server-common package, the system no longer has X Windows installed. If X Windows is not installed then the system cannot ...Rule Medium Severity -
Disable X Windows Startup By Setting Default Target
Systems that do not require a graphical user interface should only boot by default into <code>multi-user.target</code> mode. This prevents accident...Rule Medium Severity -
System Accounting with auditd
The audit service provides substantial capabilities for recording system activities. By default, the service audits about SELinux AVC denials and c...Group -
Ensure the audit-libs package as a part of audit Subsystem is Installed
The audit-libs package should be installed.Rule Medium Severity -
Ensure the audit Subsystem is Installed
The audit package should be installed.Rule Medium Severity -
Enable auditd Service
The <code>auditd</code> service is an essential userspace component of the Linux Auditing System, as it is responsible for writing audit records to...Rule Medium Severity -
Enable Auditing for Processes Which Start Prior to the Audit Daemon
To ensure all processes can be audited, even those which start prior to the audit daemon, add the argument <code>audit=1</code> to the default GRUB...Rule Low Severity -
Extend Audit Backlog Limit for the Audit Daemon
To improve the kernel capacity to queue all log events, even those which occurred prior to the audit daemon, add the argument <code>audit_backlog_l...Rule Low Severity -
Configure auditd Rules for Comprehensive Auditing
The <code>auditd</code> program can perform comprehensive monitoring of system activity. This section describes recommended configuration settings ...Group -
Make the auditd Configuration Immutable
If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...Rule Medium Severity -
Record Events that Modify the System's Mandatory Access Controls
If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...Rule Medium Severity -
Record Events that Modify the System's Mandatory Access Controls in usr/share
If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...Rule Medium Severity -
Ensure auditd Collects Information on Exporting to Media (successful)
At a minimum, the audit system should collect media exportation events for all users and root. If the <code>auditd</code> daemon is configured to u...Rule Medium Severity -
Record Events that Modify the System's Network Environment
If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...Rule Medium Severity -
Record Events that Modify the System's Network Environment
If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...Rule Medium Severity -
Record Attempts to Alter Process and Session Initiation Information
The audit system already collects process information for all users and root. If the <code>auditd</code> daemon is configured to use the <code>auge...Rule Medium Severity -
Record Events When Executables Are Run As Another User
Verify the system generates an audit record when actions are run as another user. sudo provides users with temporary elevated privileges to perform...Rule Medium Severity -
Ensure auditd Collects System Administrator Actions
At a minimum, the audit system should collect administrator actions for all users and root. If the <code>auditd</code> daemon is configured to use ...Rule Medium Severity -
Record Events that Modify User/Group Information - /etc/group
If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...Rule Medium Severity -
Record Events that Modify User/Group Information - /etc/gshadow
If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...Rule Medium Severity -
Record Events that Modify User/Group Information - /etc/security/opasswd
If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...Rule Medium Severity -
Record Events that Modify User/Group Information - /etc/passwd
If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...Rule Medium Severity -
Record Events that Modify User/Group Information - /etc/shadow
If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...Rule Medium Severity -
Record Attempts to perform maintenance activities
The Red Hat Enterprise Linux 10 operating system must generate audit records for privileged activities, nonlocal maintenance, diagnostic sessions a...Rule Medium Severity -
System Audit Logs Must Have Mode 0750 or Less Permissive
If <code>log_group</code> in <code>/etc/audit/auditd.conf</code> is set to a group other than the <code>root</code> group account, change the mode...Rule Medium Severity -
System Audit Logs Must Be Group Owned By Root
All audit logs must be group owned by root user. The path for audit log can be configured via <code>log_file</code> parameter in <pre>/etc/audit/au...Rule Medium Severity -
Audit Configuration Files Must Be Owned By Group root
All audit configuration files must be owned by group root.chown :root /etc/audit/audit*.{rules,conf} /etc/audit/rules.d/*Rule Medium Severity -
Audit Configuration Files Must Be Owned By Root
All audit configuration files must be owned by root user. To properly set the owner of <code>/etc/audit/</code>, run the command: <pre>$ sudo chow...Rule Medium Severity -
System Audit Logs Must Be Owned By Root
All audit logs must be owned by root user. The path for audit log can be configured via <code>log_file</code> parameter in <pre>/etc/audit/auditd.c...Rule Medium Severity -
Audit Configuration Files Permissions are 640 or More Restrictive
All audit configuration files permissions must be 640 or more restrictive. <pre>chmod 0640 /etc/audit/audit*.{rules,conf} /etc/audit/rules.d/*</pre...Rule Medium Severity -
System Audit Logs Must Have Mode 0640 or Less Permissive
Determine where the audit logs are stored with the following command: <pre>$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/aud...Rule Medium Severity -
Record Events that Modify the System's Discretionary Access Controls
At a minimum, the audit system should collect file permission changes for all users and root. Note that the "-F arch=b32" lines should be present e...Group -
Record Events that Modify the System's Discretionary Access Controls - chmod
At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...Rule Medium Severity -
Record Events that Modify the System's Discretionary Access Controls - chown
At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...Rule Medium Severity -
Record Events that Modify the System's Discretionary Access Controls - fchmod
At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...Rule Medium Severity -
Record Events that Modify the System's Discretionary Access Controls - fchmodat
At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...Rule Medium Severity -
Record Events that Modify the System's Discretionary Access Controls - fchown
At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...Rule Medium Severity -
Record Events that Modify the System's Discretionary Access Controls - fchownat
At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...Rule Medium Severity -
Record Events that Modify the System's Discretionary Access Controls - fremovexattr
At a minimum, the audit system should collect file permission changes for all users and root. <br> <br> If the <code>auditd</code> daemon i...Rule Medium Severity -
Record Events that Modify the System's Discretionary Access Controls - fsetxattr
At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...Rule Medium Severity -
Record Events that Modify the System's Discretionary Access Controls - lchown
At a minimum, the audit system should collect file permission changes for all users and root. If the <code>auditd</code> daemon is configured to us...Rule Medium Severity -
Record Events that Modify the System's Discretionary Access Controls - lremovexattr
At a minimum, the audit system should collect file permission changes for all users and root. <br> <br> If the <code>auditd</code> daemon i...Rule Medium Severity
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