Check Point Advisories

Microsoft SharePoint W3WP Denial of Service (MS13-067; CVE-2013-0081)

Vulnerability
Protection

Check Point Reference:	CPAI-2013-2910
Date Published:	10 Sep 2013
Severity:	High
Last Updated:	Monday 06 January, 2025
Source:	CVE-2013-0081
Protection Provided by:	Security Gateway R70 R71 R75
Who is Vulnerable?	Microsoft SharePoint Portal Server 2003 Service Pack 3 Microsoft Windows SharePoint Services 2.0 Microsoft Windows SharePoint Services 3.0 Service Pack 3 (32-bit versions) Microsoft Windows SharePoint Services 3.0 Service Pack 3 (64-bit versions) SharePoint Server 2007 Service Pack 3 (32-bit editions) SharePoint Server 2007 Service Pack 3 (64-bit editions) Microsoft SharePoint Foundation 2010 Service Pack 1 Microsoft SharePoint Server 2010 Service Pack 1 Microsoft SharePoint Foundation 2010 Service Pack 2 Microsoft SharePoint Server 2010 Service Pack 2 Microsoft SharePoint Foundation 2013 Microsoft SharePoint Server 2013
Vulnerability Description	A denial of service vulnerability exists in Microsoft SharePoint Server.
Update/Patch Avaliable	Apply patches from: MS13-067
Vulnerability Details	The vulnerability is caused when Microsoft SharePoint does not properly handle starting an unassigned workflow. A remote attacker may exploit this issue by entering a specially crafted URL to a system running an affected version of SharePoint Server. An attacker who successfully exploited this vulnerability could cause the W3WP process on an affected version of SharePoint Server to terminate, causing the SharePoint site, and any other sites running under that process, to become unavailable until the process is restarted.

Protection Overview

This protection will detect and block attempts to send specially crafted URLs.

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 R75 / R71 / R70

In the IPS tab, click Protections and find the Microsoft SharePoint W3WP Denial of Service (MS13-067) 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: Microsoft SharePoint W3WP Denial of Service (MS13-067)