STIGQter STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

RHEL 9 must disable core dumps for all users.

DISA Rule

SV-257814r1156057_rule

Vulnerability Number

V-257814

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

RHEL-09-213095

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure RHEL 9 to disable core dumps for all users.

Add the following line to the top of the /etc/security/limits.conf or in a single ".conf" file defined in /etc/security/limits.d/:

* hard core 0

Remove or comment out any entries for users or groups with a value set to anything other than "0".

Check Contents

Note: If kernel dumps are disabled in accordance with RHEL-09-213040, this requirement is not applicable.

Verify RHEL 9 disables core dumps for all users by issuing the following command:

$ grep -rs core /etc/security/limits.conf /etc/security/limits.d/*.conf

/etc/security/limits.conf:* hard core 0

This can be set as a global domain (with the * wildcard) but may be set differently for multiple domains.

If the "core" item is missing or commented out, or the value is anything other than "0", and the need for core dumps is not documented with the information system security officer (ISSO) as an operational requirement for all domains that have the "core" item assigned, this is a finding.

If entries exist for users or groups with a value set to anything other than "0", this is a finding.

Vulnerability Number

V-257814

Documentable

False

Rule Version

RHEL-09-213095

Severity Override Guidance

Note: If kernel dumps are disabled in accordance with RHEL-09-213040, this requirement is not applicable.

Verify RHEL 9 disables core dumps for all users by issuing the following command:

$ grep -rs core /etc/security/limits.conf /etc/security/limits.d/*.conf

/etc/security/limits.conf:* hard core 0

This can be set as a global domain (with the * wildcard) but may be set differently for multiple domains.

If the "core" item is missing or commented out, or the value is anything other than "0", and the need for core dumps is not documented with the information system security officer (ISSO) as an operational requirement for all domains that have the "core" item assigned, this is a finding.

If entries exist for users or groups with a value set to anything other than "0", this is a finding.

Check Content Reference

M

Target Key

5551