SLEM 5 must generate audit records for all uses of the "ssh-keysign" command.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-261443 | SLEM-05-654100 | SV-261443r996736_rule | CCI-000130 | medium |
| Description | ||||
| Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | ||||
| STIG | Date | |||
| SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide | 2025-05-08 | |||
Details
Check Text (C-261443r996736_chk)
Verify SLEM 5 generates an audit record for all uses of the "ssh-keysign" command with the following command:
> sudo auditctl -l | grep -w '/usr/lib/ssh/ssh-keysign'
-a always,exit -S all -F path=/usr/lib/ssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=-1 -F key=privileged-ssh-keysign
If the command does not return any output, this is a finding.
Note: The "key=" value is arbitrary and can be different from the example output above.
Fix Text (F-65080r996735_fix)
Configure SLEM 5 to generate an audit record for all uses of the "ssh-keysign" command.
Add or modify the following line in the "/etc/audit/rules.d/audit.rules" file:
-a always,exit -F path=/usr/lib/ssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-keysign
To reload the rules file, restart the audit daemon:
> sudo systemctl restart auditd.service
or issue the following command:
> sudo augenrules --load