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

RHEL 10 must automatically lock an account when three unsuccessful login attempts occur.

DISA Rule

SV-281194r1166534_rule

Vulnerability Number

V-281194

Group Title

SRG-OS-000329-GPOS-00128

Rule Version

RHEL-10-600410

Severity

CAT II

CCI(s)

• CCI-002238 - Automatically lock the account or node for either an organization-defined time period, until the locked account or node is released by an administrator, or delays the next logon prompt according to the organization-defined delay algorithm when the maximum number of unsuccessful logon attempts is exceeded.
• CCI-000044 - Enforce the organization-defined limit of consecutive invalid logon attempts by a user during the organization-defined time period.

Weight

10

Fix Recommendation

Configure RHEL 10 to lock an account when three unsuccessful login attempts occur.

Add/modify the "/etc/security/faillock.conf" file to match the following line:

deny = 3

Check Contents

Verify RHEL 10 is configured to lock an account after three unsuccessful login attempts with the following command:

$ sudo grep 'deny =' /etc/security/faillock.conf
deny = 3

If the "deny" option is not set to "3" or less (but not "0"), or is missing or commented out, this is a finding.

Vulnerability Number

V-281194

Documentable

False

Rule Version

RHEL-10-600410

Severity Override Guidance

Verify RHEL 10 is configured to lock an account after three unsuccessful login attempts with the following command:

$ sudo grep 'deny =' /etc/security/faillock.conf
deny = 3

If the "deny" option is not set to "3" or less (but not "0"), or is missing or commented out, this is a finding.

Check Content Reference

M

Target Key

5733