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

The ALG providing user access control intermediary services must conceal, via the session lock, information previously visible on the display with a publicly viewable image.

DISA Rule

SV-205058r396549_rule

Vulnerability Number

V-205058

Group Title

SRG-NET-000521

Rule Version

SRG-NET-000521-ALG-000002

Severity

CAT II

CCI(s)

• CCI-000060 - Conceal, via the device lock, information previously visible on the display with a publicly viewable image.

Weight

10

Fix Recommendation

If user access control intermediary services are provided, configure the ALG to conceal, via the session lock, information previously visible on the display with a publicly viewable image.

Check Contents

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

Verify the ALG conceals, via the session lock, information previously visible on the display with a publicly viewable image.

If the ALG does not conceal, via the session lock, information previously visible on the display with a publicly viewable image, this is a finding.

Vulnerability Number

V-205058

Documentable

False

Rule Version

SRG-NET-000521-ALG-000002

Severity Override Guidance

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

Verify the ALG conceals, via the session lock, information previously visible on the display with a publicly viewable image.

If the ALG does not conceal, via the session lock, information previously visible on the display with a publicly viewable image, this is a finding.

Check Content Reference

M

Target Key

2904