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Preemptive Protection against Microsoft Active Directory Certificate Services Cross-Site Scripting (MS11-051; CVE-2011-1264)


Check Point Reference: CPAI-2011-452
Date Published:
Preemptive Since:
Source: Microsoft Security Bulletin MS11-051
Industry Reference(s): CVE-2011-1264
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
Windows servers with Certificate Services installed.
Vulnerability Description
A cross-site scripting vulnerability has been reported in Microsoft Active Directory Certificate Services.
Update/Patch Available
Apply patches from:
Vulnerability Details
The vulnerability is due to insufficient validation of user input by the affected service. A remote attacker may exploit this vulnerability by sending specially crafted post requests to the server. Successful exploitation could allow the attacker to execute a client-side script in the affected component, which may lead to information disclosure.

Protection Overview
This protection will detect and block the transferring of malicious requests sent to the server.

No update is required to address this vulnerability.
Users are protected against this vulnerability if the Cross-Site Scripting protection found in the Protection section of CPSA-2003-07 has been applied.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway R75 / R71 / R70

How Can I Protect My Network?

1. In the IPS tab, click Protections and find the Cross-Site Scripting protection using the Search tool and Edit the protection's settings.
2. Install policy on all modules.

Note: In order for the protection to work, HTTPS inspection has to be enabled in the SmartDashboard. For further information and instructions, please refer to the R75.20 IPS Administration Guide.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: Web Server Enforcement Violation
Attack Information: cross site scripting detected in URL