1.192 AZLX-23-005000

Information

Amazon Linux 2023 audit system must protect logon user identifiers (UIDs) from unauthorized change.

GROUP ID: V-274187RULE ID: SV-274187r1120715

If modification of login UIDs is not prevented, they can be changed by nonprivileged users and make auditing complicated or impossible.

Satisfies: SRG-OS-000462-GPOS-00206, SRG-OS-000475-GPOS-00220, SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029

Solution

Configure Amazon Linux 2023 auditing to prevent modification of login UIDs once they are set by adding the following line to /etc/audit/rules.d/audit.rules:

--loginuid-immutable

To load the rules to the kernel immediately, use the following command:

$ sudo augenrules --load

See Also

https://workbench.cisecurity.org/benchmarks/26107