Check Point Advisories

Bull-Dosa Denial of Service Tool

Vulnerability
Protection

Check Point Reference:	CPAI-2015-0423
Date Published:	5 Apr 2015
Severity:	Critical
Last Updated:	Sunday 05 April, 2015
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Web Servers
Vulnerability Description	Bull-Dosa is a denial-of-service attack tool associated with malicious activity. The tool crafts and sends multiple packets that can potentially cause attacked systems to become temporarily unresponsive. Note: This protection is supported from version R75.40VS and above and cannot be enforced by previous IPS gateway versions.

Protection Overview

This protection will detect and block multiple requests sent by Bull-Dosa over a short period of time.

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 Bull-Dosa Denial of Service Tool 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: Bull-Dosa Denial of Service Tool