Check Point Advisories

Web Servers Slow HTTP Denial of Service

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1191
Date Published:	30 Mar 2014
Severity:	High
Last Updated:	Sunday 30 March, 2014
Source:
Protection Provided by:	Security Gateway R75 and above
Who is Vulnerable?	Web servers
Vulnerability Description	A denial of service vulnerability has been reported in all web servers. The vulnerability is due to the server's inability to handle multiple specially crafted TCP packets. Remote attackers can exploit this issue by continuously sending small TCP data packets to the server.

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, Protection tab and select the version of your choice.

Security Gateway R70 / R71 / R75 and above

In the IPS tab, click Protections and find the Web Servers Slow HTTP Denial of Service protection using the Search tool and Edit the protection's settings.
Install policy on all modules.

SmartView Tracker will log the following entries:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  Web Servers Slow HTTP Denial of Service