STIGQter STIGQter: STIG Summary: Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide Version: 1 Release: 7 Benchmark Date: 01 Jul 2026:

AlmaLinux OS 9 must disable core dumps for all users.

DISA Rule

SV-269178r1156418_rule

Vulnerability Number

V-269178

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

ALMA-09-011240

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the operating system 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

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

Note: If kernel dumps are disabled in accordance with ALMA-09-011680, this requirement is not applicable.

$ grep -r -s 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-269178

Documentable

False

Rule Version

ALMA-09-011240

Severity Override Guidance

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

Note: If kernel dumps are disabled in accordance with ALMA-09-011680, this requirement is not applicable.

$ grep -r -s 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

5664