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:	23 Jan 2014
Severity:	High
Last Updated:	Monday 30 March, 2015
Source:
Industry Reference:	CVE-2013-4517
Protection Provided by:	Security Gateway R81, R80, R77, R75
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, 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 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 Security Gateways.

This protection's log will contain the following information:

Attack Name: Apache Server Protection Violation.
Attack Information: Apache Santuario XML Security for Java DTD Denial of Service