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 umount command.

DISA Rule

SV-217214r603262_rule

Vulnerability Number

V-217214

Group Title

SRG-OS-000037-GPOS-00015

Rule Version

SLES-12-020300

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 "umount" command.

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

-a always,exit -F arch=b32 -S umount -F auid>=1000 -F auid!=4294967295 -k privileged-umount
-a always,exit -F arch=b32 -S umount2 -F auid>=1000 -F auid!=4294967295 -k privileged-umount
-a always,exit -F arch=b64 -S umount2 -F auid>=1000 -F auid!=4294967295 -k privileged-umount

The audit daemon must be restarted for any 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 "umount" 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 -iw umount /etc/audit/audit.rules

-a always,exit -F arch=b32 -S umount -F auid>=1000 -F auid!=4294967295 -k privileged-umount
-a always,exit -F arch=b32 -S umount2 -F auid>=1000 -F auid!=4294967295 -k privileged-umount
-a always,exit -F arch=b64 -S umount2 -F auid>=1000 -F auid!=4294967295 -k privileged-umount

If both the "b32" and "b64" audit rules are not defined for the "umount" syscall, this is a finding.

Vulnerability Number

V-217214

Documentable

False

Rule Version

SLES-12-020300

Severity Override Guidance

Verify the SUSE operating system generates an audit record for all uses of the "umount" 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 -iw umount /etc/audit/audit.rules

-a always,exit -F arch=b32 -S umount -F auid>=1000 -F auid!=4294967295 -k privileged-umount
-a always,exit -F arch=b32 -S umount2 -F auid>=1000 -F auid!=4294967295 -k privileged-umount
-a always,exit -F arch=b64 -S umount2 -F auid>=1000 -F auid!=4294967295 -k privileged-umount

If both the "b32" and "b64" audit rules are not defined for the "umount" syscall, this is a finding.

Check Content Reference

M

Target Key

4033

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