STIGQter: STIG Summary: Red Hat Enterprise Linux 10 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

RHEL 10 must implement nonexecutable data to protect its memory from unauthorized code execution.

DISA Rule

SV-281321r1167113_rule

Vulnerability Number

V-281321

Group Title

SRG-OS-000433-GPOS-00192

Rule Version

RHEL-10-701190

Severity

CAT II

CCI(s)

• CCI-002824 - Implement organization-defined controls to protect its memory from unauthorized code execution.

Weight

10

Fix Recommendation

Configure RHEL 10 to enable ExecShield.

If "/proc/cpuinfo" shows that one or more processors do not enable ExecShield (lack the "nx" feature flag), verify the NX/XD feature is not disabled in the BIOS or UEFI. If it is disabled, enable it.

If the "noexec" option is present on the kernel command line, update the GRUB 2 bootloader configuration to remove it by running the following command:

$ sudo grubby --update-kernel=ALL --remove-args=noexec

Check Contents

Verify RHEL 10 enables ExecShield.

Run the following command:

$ sudo grep ^flags /proc/cpuinfo | grep -Ev '([^[:alnum:]])(nx)([^[:alnum:]]|$)'

If any output is returned, this is a finding.

Run the following command:

$ sudo grubby --info=ALL | grep args | grep -E '([^[:alnum:]])(noexec)([^[:alnum:]])'

If any output is returned, this is a finding.

Vulnerability Number

V-281321

Documentable

False

Rule Version

RHEL-10-701190

Severity Override Guidance

Verify RHEL 10 enables ExecShield.

Run the following command:

$ sudo grep ^flags /proc/cpuinfo | grep -Ev '([^[:alnum:]])(nx)([^[:alnum:]]|$)'

If any output is returned, this is a finding.

Run the following command:

$ sudo grubby --info=ALL | grep args | grep -E '([^[:alnum:]])(noexec)([^[:alnum:]])'

If any output is returned, this is a finding.

Check Content Reference

M

Target Key

5733