Check Point Advisories

Simple Web Server Connection Header Buffer Overflow

Vulnerability
Protection

Check Point Reference:	CPAI-2013-027
Date Published:	8 Apr 2013
Severity:	High
Last Updated:	Wednesday 25 December, 2013
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	PMSoftware Simple Web Server 2.2-rc2 suffers from remote buffer overflow vulnerability. The vulnerability is caused by failure to sanitize user-supplied input resulting in a buffer overflow. A remote user can send a long string data in a certain header, resulting in stack overflow, and gain arbitrary code execution.

Protection Overview

This protection will detect and block arbitrary code execution on the target server.

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 Simple Web Server Connection Header 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: Simple Web Server Connection header buffer overflow