The ALG providing intermediary services for remote access communications traffic must provide the capability to immediately disconnect or disable remote access to the information system.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-54363	SRG-NET-000314-ALG-000013	SV-68609r1_rule		Medium

Description
Without the ability to immediately disconnect or disable remote access, an attack or other compromise taking progress would not be immediately stopped. Remote access functionality must have the capability to immediately disconnect current users remotely accessing the information system and/or disable further remote access. The remote access functionality may implement features, such as automatic disconnect (or user-initiated disconnect) in case of adverse information based on an indicator of compromise or attack. This requirement applies to ALGs providing remote access termination (e.g., OWA or TLS gateway) as part of its intermediary services.

Description

Without the ability to immediately disconnect or disable remote access, an attack or other compromise taking progress would not be immediately stopped. Remote access functionality must have the capability to immediately disconnect current users remotely accessing the information system and/or disable further remote access. The remote access functionality may implement features, such as automatic disconnect (or user-initiated disconnect) in case of adverse information based on an indicator of compromise or attack. This requirement applies to ALGs providing remote access termination (e.g., OWA or TLS gateway) as part of its intermediary services.

STIG	Date
Application Layer Gateway Security Requirements Guide	2014-11-03

Details

Check Text ( C-54979r1_chk )
If the ALG does not serve as an intermediary for remote access traffic (e.g., web content filter, TLS and webmail), this is not applicable. Verify the ALG provides the capability to immediately disconnect or disable remote access to the information system. If the ALG does not provide the capability to immediately disconnect or disable remote access to the information system, this is a finding.

Fix Text (F-59217r1_fix)
If intermediary services for remote access communications traffic are provided, configure the ALG to provide the capability to immediately disconnect or disable remote access to the information system.