Check Point Advisories

Microsoft Office SharePoint Server help.aspx Cross Site Scripting (CVE-2010-0817)

Check Point Reference: CPAI-2010-074
Date Published: 2 May 2010
Severity: High
Last Updated: Sunday 02 May, 2010
Source:
Industry Reference:CVE-2010-0817
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description Microsoft Windows SharePoint Services (WSS) is an add-on component of Windows Server that provides content managament functionality. WSS is based on IIS and ASP.NET technologies, providing a basic portal infrastructure, collaborative editing of documents, document organization, and version control capabilities. SharePoint functionality is exposed as web parts, which are components that implement a certain functionality. The mentioned web parts are then composed into web pages, which are then hosted in the SharePoint portal. WSS is integrated in other Microsoft products such as the Office SharePoint Server. A cross-site scripting vulnerability exists in Microsoft Office SharePoint Server. The flaw is due to insufficient input validation of data supplied to the "/_layouts/help.aspx" script. A remote attacker can exploit this vulnerability to execute arbitrary HTML or script code within a target's web browser. Successful exploitation would result in compromise of target user's cookies (including authentication cookies) associated with the site, and modification of user information.

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 / R71 / R70

  1. In the IPS tab, click Protections and find the Microsoft Office SharePoint Server help.aspx Cross Site Scripting protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  SharePoint Enforcement Violation.
Attack Information:  Microsoft Office SharePoint Server help.aspx Cross Site Scripting

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