Check Point Advisories

Apache Tomcat Chunked Transfer Denial of Service (CVE-2012-3544)

Vulnerability
Protection

Check Point Reference:	CPAI-2013-3543
Date Published:	2 Dec 2013
Severity:	High
Last Updated:	Thursday 02 January, 2025
Source:	CVE-2012-3544
Protection Provided by:	Security Gateway R75
Who is Vulnerable?	Apache Software Foundation Tomcat 6.x prior to 6.0.37 Apache Software Foundation Tomcat 7.x prior to 7.0.30
Vulnerability Description	A denial of service vulnerability has been reported in Apache Tomcat.
Vulnerability Details	The error is caused by Tomcat not discarding any extensions included in very long Chunked-transfer requests, even if they were not processed. A remote attacker could exploit this vulnerability to send a large amount of data to the server causing it to use up excessive resources.

Protection Overview

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

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

Security Gateway R75 / R71 / R70

In the IPS tab, click Protections and find the Apache Tomcat Chunked Transfer 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: Apache Server Protection Violation
Attack Information: Apache Tomcat Chunked Transfer Denial of Service