McAfee VirusScan Buffer Overflow Protection Policies must be configured for Protection mode.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-14658	DTAM131	SV-55236r1_rule		Medium

Description
Buffer overflow is an anomaly where a program, while writing data to a buffer, overruns the buffer's boundary and overwrites adjacent memory. This anomaly has been used maliciously, explicitly to craft exploits. Buffer overflow attacks compose greater than 25% of malware attacks. Without buffer overflow protection enabled, systems are more vulnerable to attacks that attempt to overwrite adjacent memory in the stack frame. Protection mode will ensure buffer overflow is detected and blocked. Otherwise, only a warning message will be logged. Buffer overflow protection is only configurable on non-64-bit systems.

Description

Buffer overflow is an anomaly where a program, while writing data to a buffer, overruns the buffer's boundary and overwrites adjacent memory. This anomaly has been used maliciously, explicitly to craft exploits. Buffer overflow attacks compose greater than 25% of malware attacks. Without buffer overflow protection enabled, systems are more vulnerable to attacks that attempt to overwrite adjacent memory in the stack frame. Protection mode will ensure buffer overflow is detected and blocked. Otherwise, only a warning message will be logged. Buffer overflow protection is only configurable on non-64-bit systems.

STIG	Date
McAfee VirusScan 8.8 Managed Client STIG	2017-07-05

Details

Check Text ( C-48826r3_chk )
NOTE: Buffer Overflow Protection is not installed on 64-bit systems; this check would be Not Applicable to 64-bit systems. NOTE: On 32-bit systems, when Host Intrusion Prevention is also installed, Buffer Overflow Protection will show as "Disabled because a Host Intrusion Prevention product is installed"; this check would be Not Applicable. From the ePO server console System Tree, select the Systems tab, select the asset to be checked, select Actions, select Agent, and select Modify Policies on a Single System. From the product pull down list, select VirusScan Enterprise 8.8.0. Select from the Policy column the policy associated with the Buffer Overflow Protection Policies. Under the Buffer Overflow Protection tab, locate the "Buffer Overflow settings:" label. Ensure the "Protection mode" option is selected. Criteria: If the "Protection mode" option is selected, this is not a finding. On the client machine, use the Windows Registry Editor to navigate to the following key: HKLM\Software\McAfee\ (32-bit) SystemCore\VSCore\On Access Scanner\BehaviourBlocking Criteria: If the value BOPMode is 1, this is not a finding. If the value is 0, this is a finding.

Check Text ( C-48826r3_chk )

NOTE: Buffer Overflow Protection is not installed on 64-bit systems; this check would be Not Applicable to 64-bit systems.

NOTE: On 32-bit systems, when Host Intrusion Prevention is also installed, Buffer Overflow Protection will show as "Disabled because a Host Intrusion Prevention product is installed"; this check would be Not Applicable.

From the ePO server console System Tree, select the Systems tab, select the asset to be checked, select Actions, select Agent, and select Modify Policies on a Single System. From the product pull down list, select VirusScan Enterprise 8.8.0. Select from the Policy column the policy associated with the Buffer Overflow Protection Policies. Under the Buffer Overflow Protection tab, locate the "Buffer Overflow settings:" label. Ensure the "Protection mode" option is selected.

Criteria: If the "Protection mode" option is selected, this is not a finding.

On the client machine, use the Windows Registry Editor to navigate to the following key:
HKLM\Software\McAfee\ (32-bit)
SystemCore\VSCore\On Access Scanner\BehaviourBlocking

Criteria: If the value BOPMode is 1, this is not a finding. If the value is 0, this is a finding.

Fix Text (F-48091r2_fix)
From the ePO server console System Tree, select the Systems tab, select the asset to be checked, select Actions, select Agent, and select Modify Policies on a Single System. From the product pull down list, select VirusScan Enterprise 8.8.0. Select from the Policy column the policy associated with the Buffer Overflow Protection Policies. Under the Buffer Overflow Protection tab, locate the "Buffer Overflow settings:" label. Select the "Protection mode" option. Select Save.

Fix Text (F-48091r2_fix)

From the ePO server console System Tree, select the Systems tab, select the asset to be checked, select Actions, select Agent, and select Modify Policies on a Single System. From the product pull down list, select VirusScan Enterprise 8.8.0. Select from the Policy column the policy associated with the Buffer Overflow Protection Policies. Under the Buffer Overflow Protection tab, locate the "Buffer Overflow settings:" label. Select the "Protection mode" option. Select Save.