Detections
Analytics

1.446 OL09-00-008000

Information

OL 9 audit system must protect logon UIDs from unauthorized change.

GROUP ID: V-271885
RULE ID: SV-271885r1092367

If modification of login user identifiers (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 OL 9 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

The audit daemon must be restarted for the changes to take effect.

$ sudo service auditd restart

See Also

https://workbench.cisecurity.org/benchmarks/27024

Item Details

Category: AUDIT AND ACCOUNTABILITY

References: 800-53|AU-9, 800-53|AU-12c., CCI|CCI-000162, CCI|CCI-000163, CCI|CCI-000164, CCI|CCI-000172, Rule-ID|SV-271885r1092367_rule, STIG-ID|OL09-00-008000, Vuln-ID|V-271885

Plugin: Unix

Control ID: 19f637098c7e2f038c4909366ab56ba987441715418678d48dbd5d64815ebd69