The ALG providing content filtering must delete or quarantine malicious code in response to malicious code detection.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-54661	SRG-NET-000249-ALG-000145	SV-68907r1_rule		Medium

Description
Taking an appropriate action based on local organizational incident handling procedures minimizes the impact of this code on the network. The ALG must be configured to block all detected malicious code. It is sometimes acceptable/necessary to generate a log event and then automatically delete the malicious code; however for critical attacks or where forensic evidence is deemed necessary, the file should be quarantined for further investigation. This requirement is limited to ALGs web content filters and packet inspection firewalls; that perform malicious code detection as part of their functionality.

Description

Taking an appropriate action based on local organizational incident handling procedures minimizes the impact of this code on the network. The ALG must be configured to block all detected malicious code. It is sometimes acceptable/necessary to generate a log event and then automatically delete the malicious code; however for critical attacks or where forensic evidence is deemed necessary, the file should be quarantined for further investigation. This requirement is limited to ALGs web content filters and packet inspection firewalls; that perform malicious code detection as part of their functionality.

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

Details

Check Text ( C-55281r1_chk )
If the ALG does not perform content filtering as part of the traffic management functionality, this is not applicable. Verify the ALG blocks and either deletes or quarantines malicious code upon detection. If the ALG does not block and either delete or quarantine malicious code upon detection, this is a finding.

Fix Text (F-59517r1_fix)
If content filtering is provided as part of the traffic management functionality, configure the ALG to block and either delete or quarantine malicious code when it is detected.