Check Point Advisories

D-Link HNAP Request Stack Buffer Overflow (CVE-2014-3936)

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1737
Date Published:	28 Jul 2014
Severity:	Critical
Last Updated:	Wednesday 26 November, 2014
Source:	D-Link Systems SAP10029
Industry Reference:	CVE-2014-3936
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	D-Link Systems DIR-505 1.07 and prior D-Link Systems DIR-505L 1.01 and prior D-Link Systems DSP-W215 1.02 and prior
Vulnerability Description	A remote code execution vulnerability exists in D-Link routers. The vulnerability is due to a stack buffer overflow while processing crafted HTTP POST requests addressed to the HNAP handler. A remote unauthenticated attacker can exploit this vulnerability to execute arbitrary code on the affected device with root privileges.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the D-Link HNAP Request Stack Buffer Overflow protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Server Enforcement Violation.
Attack Information: D-Link HNAP Request Stack Buffer Overflow