Check Point Advisories

Apache Santuario XML Security for Java DTD Denial of Service (CVE-2013-4517)

Vulnerability
Protection

Check Point Reference:	CPAI-2014-0761
Date Published:	13 Mar 2014
Severity:	High
Last Updated:	Thursday 13 March, 2014
Source:	CVE-2013-4517
Protection Provided by:	Security Gateway R75 and above
Who is Vulnerable?
Vulnerability Description	A denial of service vulnerability exists in Apache Santuario XML Security for Java. The vulnerability is due to the allowing of Document Type Definitions (DTDs) when validating signatures. A remote attacker can exploit this vulnerability by providing a specially crafted XML signature. Successful exploitation could result in the application crashing resulting in a denial of service condition.

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 Apache Santuario XML Security for Java DTD 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 Santuario XML Security for Java DTD Denial of Service