The McAfee VirusScan Enterprise for Linux 1.9.x/2.0.x On-Access scanner must be configured to decompress archives when scanning.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-63001	DTAVSEL-004	SV-77491r1_rule		Medium

Description
Malware is often packaged within an archive. In addition, archives may have other archives within. Not scanning archive files introduces the risk of infected files being introduced into the environment.

STIG	Date
McAfee VSEL 1.9/2.0 Managed Client Security Technical Implementation Guide	2016-04-06

Details

Check Text ( C-63753r1_chk )
From the ePO server console System Tree, select "My Organization". Select the "Systems" tab. To show all systems in the System Tree, select "This Group and All Subgroups" from the "Preset:" drop-down list. From the list of systems, locate the asset representing the Linux system being reviewed. Click on the system to open the System Information page. Click on Actions >> Agent >> Modify Policies on a Single System. From the "Product:" drop-down list, select "VirusScan Enterprise for Linux 1.9.x/2.0.x". From the "Policy" column, click on the policy for the "On-Access Scanning Policy". In the "Advanced" tab, next to the "Compressed files", verify the check box for "Scan inside multiple-file archives (e.g., .ZIP)" is selected. If the check box for "Compressed files: Scan inside multiple-file archives (e.g., .ZIP)" is not selected, this is a finding. SECURITY OVERRIDE: If the check box for "Compressed files: Scan inside multiple-file archives (e.g., .ZIP)" is not selected but the On-Demand scan decompress of archives is configured in the regularly scheduled scan, as specified in STIG ID DTAVSEL-101, this is a finding but can be dropped to a CAT III.

Check Text ( C-63753r1_chk )

From the ePO server console System Tree, select "My Organization". Select the "Systems" tab. To show all systems in the System Tree, select "This Group and All Subgroups" from the "Preset:" drop-down list.

From the list of systems, locate the asset representing the Linux system being reviewed. Click on the system to open the System Information page.

Click on Actions >> Agent >> Modify Policies on a Single System.

From the "Product:" drop-down list, select "VirusScan Enterprise for Linux 1.9.x/2.0.x". From the "Policy" column, click on the policy for the "On-Access Scanning Policy".

In the "Advanced" tab, next to the "Compressed files", verify the check box for "Scan inside multiple-file archives (e.g., .ZIP)" is selected.

If the check box for "Compressed files: Scan inside multiple-file archives (e.g., .ZIP)" is not selected, this is a finding.

SECURITY OVERRIDE:
If the check box for "Compressed files: Scan inside multiple-file archives (e.g., .ZIP)" is not selected but the On-Demand scan decompress of archives is configured in the regularly scheduled scan, as specified in STIG ID DTAVSEL-101, this is a finding but can be dropped to a CAT III.

Fix Text (F-68919r1_fix)
From the ePO server console System Tree, select "My Organization". Select the "Systems" tab. To show all systems in the System Tree, select "This Group and All Subgroups" from the "Preset:" drop-down list. From the list of systems, locate the asset representing the Linux system being reviewed. Click on the system to open the System Information page. Click on Actions >> Agent >> Modify Policies on a Single System. From the "Product:" drop-down list, select "VirusScan Enterprise for Linux 1.9.x/2.0.x". From the "Policy" column, click on the policy for the "On-Access Scanning Policy". In the "Advanced" tab, next to the "Compressed files", select the check box for "Scan inside multiple-file archives (e.g., .ZIP)". Click "Save".

Fix Text (F-68919r1_fix)