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Microsoft ASP.NET PKCS Padding Information Disclosure (MS10-070; CVE-2010-3332)


Check Point Reference: CPAI-2012-1137
Date Published:
Source: Microsoft Security Bulletin MS10-070
Industry Reference(s): CVE-2010-3332
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
Microsoft Windows Vista
Microsoft Windows XP
Microsoft Windows 7
Microsoft Windows Server 2003
Microsoft Windows Server 2008
Microsoft Windows Server 2008 R2
Vulnerability Description
An information disclosure vulnerability has been reported in ASP.NET.
Update/Patch Available
Apply patches from: MS10-070
Vulnerability Details
This vulnerability is caused by ASP.NET providing web clients details in error messages when decrypting certain ciphertext. Successful exploitation of this vulnerability could allow the attacker to read and tamper with data. If tampered with, the attacker could send this data back to the server and observe the error codes returned by the server. By observing these error codes, an attacker could gain enough information to decrypt and tamper with the encrypted data.

Protection Overview
This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your product to the latest update. For information on how to update , go to SBP-2006-05, Protection tab and select the version of your choice.

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 Microsoft ASP.NET PKCS Padding Information Disclosure (MS10-070) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

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: Microsoft ASP.NET PKCS Padding Information Disclosure (MS10-070)