STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 26 Mar 2026:

TOSS 5 must audit uses of the execve system call.

DISA Rule

SV-282561r1200663_rule

Vulnerability Number

V-282561

Group Title

SRG-OS-000326-GPOS-00126

Rule Version

TOSS-05-000411

Severity

CAT II

CCI(s)

CCI-002233 - Prevent the organization-defined software from executing at higher privilege levels than users executing the software.
CCI-002234 - Log the execution of privileged functions.

Weight

Fix Recommendation

Configure TOSS 5 to audit the execution of the "execve" system call.

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

-a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k execpriv
-a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k execpriv
-a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k execpriv
-a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k execpriv

Restart the audit daemon for the changes to take effect.

Check Contents

Verify TOSS 5 is configured to audit the execution of the "execve" system call using the following command:

$ sudo auditctl -l | grep execve

-a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k execpriv
-a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k execpriv
-a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k execpriv
-a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k execpriv

If the command does not return all lines, or the lines are commented out, this is a finding.

Vulnerability Number

V-282561

Documentable

False

Rule Version

TOSS-05-000411

Severity Override Guidance

Check Content Reference

Target Key

5738