STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 must restrict usage of ptrace to descendant processes.

DISA Rule

SV-271749r1198253_rule

Vulnerability Number

V-271749

Group Title

SRG-OS-000132-GPOS-00067

Rule Version

OL09-00-002410

Severity

CAT II

CCI(s)

• CCI-001082 - Separate user functionality, including user interface services, from system management functionality.

Weight

10

Fix Recommendation

Configure OL 9 to restrict usage of ptrace to descendant processes by adding the following line to "/etc/sysctl.d/99-sysctl.conf":

kernel.yama.ptrace_scope = 1

The system configuration files need to be reloaded for the changes to take effect. To reload the contents of the files, run the following command:

$ sudo sysctl --system

Check Contents

Verify that OL 9 restricts usage of ptrace to descendant processes with the following commands:

$ sysctl kernel.yama.ptrace_scope
kernel.yama.ptrace_scope = 1

If the returned line does not have a value of "1", or a line is not returned, this is a finding.

Vulnerability Number

V-271749

Documentable

False

Rule Version

OL09-00-002410

Severity Override Guidance

Verify that OL 9 restricts usage of ptrace to descendant processes with the following commands:

$ sysctl kernel.yama.ptrace_scope
kernel.yama.ptrace_scope = 1

If the returned line does not have a value of "1", or a line is not returned, this is a finding.

Check Content Reference

M

Target Key

5680