STIGQter: STIG Summary: Application Layer Gateway Security Requirements Guide Version: 2 Release: 4 Benchmark Date: 01 Jul 2026:

The ALG providing user authentication intermediary services must implement replay-resistant authentication mechanisms for network access to nonprivileged accounts.

DISA Rule

SV-204949r981631_rule

Vulnerability Number

V-204949

Group Title

SRG-NET-000147

Rule Version

SRG-NET-000147-ALG-000095

Severity

CAT II

CCI(s)

• CCI-001941 - Implement replay-resistant authentication mechanisms for access to privileged accounts and/or non-privileged accounts.

Weight

10

Fix Recommendation

If user authentication intermediary services are provided, configure the ALG to implement replay-resistant authentication mechanisms for network access to nonprivileged accounts.

Check Contents

If the ALG does not provide user authentication intermediary services, this is not applicable.

Verify the ALG is configured to implement replay-resistant authentication mechanisms for network access to nonprivileged accounts.

If the ALG does not implement replay-resistant authentication mechanisms for network access to nonprivileged accounts, this is a finding.

Vulnerability Number

V-204949

Documentable

False

Rule Version

SRG-NET-000147-ALG-000095

Severity Override Guidance

If the ALG does not provide user authentication intermediary services, this is not applicable.

Verify the ALG is configured to implement replay-resistant authentication mechanisms for network access to nonprivileged accounts.

If the ALG does not implement replay-resistant authentication mechanisms for network access to nonprivileged accounts, this is a finding.

Check Content Reference

M

Target Key

2904