STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 must display the Standard Mandatory DOD Notice and Consent Banner before granting local or remote access to the system via a SSH logon.

DISA Rule

SV-271487r1091173_rule

Vulnerability Number

V-271487

Group Title

SRG-OS-000023-GPOS-00006

Rule Version

OL09-00-000256

Severity

CAT II

CCI(s)

• CCI-000048 - Display an organization-defined system use notification message or banner to users before granting access to the system that provides privacy and security notices consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidelines.
• CCI-001384 - For publicly accessible systems, display system use information with organization-defined conditions before granting further access to the publicly accessible system.
• CCI-001385 - For publicly accessible systems, displays references, if any, to monitoring that are consistent with privacy accommodations for such systems that generally prohibit those activities.
• CCI-001386 - For publicly accessible systems, displays references, if any, to recording that are consistent with privacy accommodations for such systems that generally prohibit those activities.
• CCI-001387 - For publicly accessible systems, displays references, if any, to auditing that are consistent with privacy accommodations for such systems that generally prohibit those activities.
• CCI-001388 - For publicly accessible systems, includes a description of the authorized uses of the system.

Weight

10

Fix Recommendation

Configure OL 9 to display the Standard Mandatory DOD Notice and Consent Banner before granting access to the system via ssh.

Edit the "etc/ssh/sshd_config" file or a file in "/etc/ssh/sshd_config.d" to uncomment the banner keyword and configure it to point to a file that will contain the logon banner (this file may be named differently or be in a different location if using a version of SSH that is provided by a third-party vendor).

An example configuration line is:

Banner /etc/issue

Check Contents

Verify that OL 9 displays the Standard Mandatory DOD Notice and Consent Banner before granting access to the system via SSH connections.

Check for the location of the banner file currently being used with the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*banner'
banner /etc/issue

If the line is commented out or if the file is missing, this is a finding.

Vulnerability Number

V-271487

Documentable

False

Rule Version

OL09-00-000256

Severity Override Guidance

Verify that OL 9 displays the Standard Mandatory DOD Notice and Consent Banner before granting access to the system via SSH connections.

Check for the location of the banner file currently being used with the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*banner'
banner /etc/issue

If the line is commented out or if the file is missing, this is a finding.

Check Content Reference

M

Target Key

5680