STIGQter: STIG Summary: SUSE Linux Enterprise Server 15 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

The SUSE operating system must audit all uses of the sudoers file and all files in the /etc/sudoers.d/ directory.

DISA Rule

SV-234913r622137_rule

Vulnerability Number

V-234913

Group Title

SRG-OS-000037-GPOS-00015

Rule Version

SLES-15-030140

Severity

CAT II

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 audit records when successful/unsuccessful attempts to access the "/etc/sudoers" file and files in the "/etc/sudoers.d/" directory.

Add or update the following rule in "/etc/audit/rules.d/audit.rules":

-w /etc/sudoers -p wa -k privileged-actions

-w /etc/sudoers.d -p wa -k privileged-actions

To reload the rules file, restart the audit daemon

> sudo systemctl restart auditd.service

or issue the following command:

> sudo augenrules --load

Check Contents

Verify the operating system generates audit records when successful/unsuccessful attempts to access the "/etc/sudoers" file and files in the "/etc/sudoers.d/" directory.

Check that the file and directory is being audited by performing the following command:

> sudo auditctl -l | grep -w '/etc/sudoers'

-w /etc/sudoers -p wa -k privileged-actions
-w /etc/sudoers.d -p wa -k privileged-actions

If the commands do not return output that match the examples, this is a finding.

Notes:
The "-k" allows for specifying an arbitrary identifier. The string following "-k" does not need to match the example output above.

Vulnerability Number

V-234913

Documentable

False

Rule Version

SLES-15-030140

Severity Override Guidance

Verify the operating system generates audit records when successful/unsuccessful attempts to access the "/etc/sudoers" file and files in the "/etc/sudoers.d/" directory.

Check that the file and directory is being audited by performing the following command:

> sudo auditctl -l | grep -w '/etc/sudoers'

-w /etc/sudoers -p wa -k privileged-actions
-w /etc/sudoers.d -p wa -k privileged-actions

If the commands do not return output that match the examples, this is a finding.

Notes:
The "-k" allows for specifying an arbitrary identifier. The string following "-k" does not need to match the example output above.

Check Content Reference

M

Target Key

5274

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