Software Engineering Institute

The McAfee HTTP server (NAISERV.exe) is used in McAfee products, such as McAfee ePolicy Orchestrator and Protection Pilot. The McAfee HTTP Server is vulnerable to a stack-based buffer overflow that can be triggered by sending the server a malformed HTTP packet.

More information is available in McAfee Security Bulletin 8611438.

Note that exploit code for this vulnerability is publicly available.

A remote, unauthenticated attacker may be able to execute arbitrary code.

Apply a patch
McAfee addresses this vulnerability with the patches listed in McAfee Security Bulletin 8611438.

Limit Access to the McAfee HTTP Server

You may wish to block access to the vulnerable software from outside your network perimeter, specifically by blocking access to the ports used by the McAfee HTTP Server. This will limit your exposure to attacks. However, blocking at the network perimeter would still allow attackers within the perimeter of your network to exploit the vulnerability. The use of host-based firewalls in addition to network-based firewalls can help restrict access to specific hosts within the network. It is important to understand your network's configuration and service requirements before deciding what changes are appropriate.