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

The ALG providing content filtering must block outbound traffic containing known and unknown DoS attacks to protect against the use of internal information systems to launch any Denial of Service (DoS) attacks against other networks or endpoints.

DISA Rule

SV-204953r395994_rule

Vulnerability Number

V-204953

Group Title

SRG-NET-000192

Rule Version

SRG-NET-000192-ALG-000121

Severity

CAT II

CCI(s)

• CCI-001094 - Restrict the ability of individuals to launch organization-defined denial of service attacks against other systems.

Weight

10

Fix Recommendation

If the ALG performs content filtering as part of the traffic management functionality, configure the ALG to block outbound traffic containing known and unknown DoS attacks.

Check Contents

If the ALG does not perform content filtering as part of the traffic management functions, this is not applicable.

Verify the ALG is configured to block outbound traffic containing known and unknown DoS attacks.

If the ALG does not block outbound traffic containing known and unknown DoS attacks, this is a finding.

Vulnerability Number

V-204953

Documentable

False

Rule Version

SRG-NET-000192-ALG-000121

Severity Override Guidance

If the ALG does not perform content filtering as part of the traffic management functions, this is not applicable.

Verify the ALG is configured to block outbound traffic containing known and unknown DoS attacks.

If the ALG does not block outbound traffic containing known and unknown DoS attacks, this is a finding.

Check Content Reference

M

Target Key

2904