STIGQter: STIG Summary: Red Hat Enterprise Linux 8 Security Technical Implementation Guide Version: 2 Release: 8 Benchmark Date: 01 Jul 2026:

Successful/unsuccessful uses of the chmod, fchmod, and fchmodat system calls in RHEL 8 must generate an audit record.

DISA Rule

SV-230456r1017253_rule

Vulnerability Number

V-230456

Group Title

SRG-OS-000062-GPOS-00031

Rule Version

RHEL-08-030490

Severity

CAT II

CCI(s)

• CCI-000169 - Provide audit record generation capability for the event types the system is capable of auditing as defined in AU-2 a. on organization-defined information system components.

Weight

10

Fix Recommendation

Configure the audit system to generate an audit event for any successful/unsuccessful use of the "chmod", "fchmod", and "fchmodat" syscalls by adding or updating the following line to "/etc/audit/rules.d/audit.rules":

-a always,exit -F arch=b32 -S chmod,fchmod,fchmodat -F auid>=1000 -F auid!=unset -k perm_mod
-a always,exit -F arch=b64 -S chmod,fchmod,fchmodat -F auid>=1000 -F auid!=unset -k perm_mod

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

Check Contents

Verify RHEL 8 generates an audit record upon successful/unsuccessful attempts to use the "chmod", "fchmod", and "fchmodat" syscalls by using the following command to check the file system rules in "/etc/audit/audit.rules":

$ sudo grep chmod /etc/audit/audit.rules

-a always,exit -F arch=b32 -S chmod,fchmod,fchmodat -F auid>=1000 -F auid!=unset -k perm_mod
-a always,exit -F arch=b64 -S chmod,fchmod,fchmodat -F auid>=1000 -F auid!=unset -k perm_mod

If the command does not return an audit rule for "chmod", "fchmod", and "fchmodat", or any of the lines returned are commented out, this is a finding.

Vulnerability Number

V-230456

Documentable

False

Rule Version

RHEL-08-030490

Severity Override Guidance

Verify RHEL 8 generates an audit record upon successful/unsuccessful attempts to use the "chmod", "fchmod", and "fchmodat" syscalls by using the following command to check the file system rules in "/etc/audit/audit.rules":

$ sudo grep chmod /etc/audit/audit.rules

-a always,exit -F arch=b32 -S chmod,fchmod,fchmodat -F auid>=1000 -F auid!=unset -k perm_mod
-a always,exit -F arch=b64 -S chmod,fchmod,fchmodat -F auid>=1000 -F auid!=unset -k perm_mod

If the command does not return an audit rule for "chmod", "fchmod", and "fchmodat", or any of the lines returned are commented out, this is a finding.

Check Content Reference

M

Target Key

2921