STIGQter: STIG Summary: SLES 12 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The SUSE operating system must generate audit records for all uses of the ssh-keysign command.

DISA Rule

SV-217216r603908_rule

Vulnerability Number

V-217216

Group Title

SRG-OS-000037-GPOS-00015

Rule Version

SLES-12-020320

Severity

CAT III

CCI(s)

• CCI-000130 - The information system generates audit records containing information that establishes what type of event occurred.
• CCI-000169 - The information system provides audit record generation capability for the auditable events defined in AU-2 a. at organization-defined information system components.
• CCI-000172 - The information system generates audit records for the events defined in AU-2 d. with the content defined in AU-3.
• CCI-002884 - The organization audits nonlocal maintenance and diagnostic sessions^ organization-defined audit events.

Weight

10

Fix Recommendation

Configure the SUSE operating system to generate an audit record for all uses the "ssh-keysign" command.

Add or update the following rules 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!=4294967295 -k privileged-ssh-keysign

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

# sudo systemctl restart auditd.service

Check Contents

Verify the SUSE operating system generates an audit record for all uses of the "ssh-keysign" command.

Check that the following command call is being audited by performing the following command on the system rules in "/etc/audit/audit.rules":

# sudo grep -i ssh-keysign /etc/audit/audit.rules

-a always,exit -F path=/usr/lib/ssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged-ssh-keysign

If the command does not return any output or the returned line is commented out, this is a finding.

Vulnerability Number

V-217216

Documentable

False

Rule Version

SLES-12-020320

Severity Override Guidance

Verify the SUSE operating system generates an audit record for all uses of the "ssh-keysign" command.

Check that the following command call is being audited by performing the following command on the system rules in "/etc/audit/audit.rules":

# sudo grep -i ssh-keysign /etc/audit/audit.rules

-a always,exit -F path=/usr/lib/ssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged-ssh-keysign

If the command does not return any output or the returned line is commented out, this is a finding.

Check Content Reference

M

Target Key

4033

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