Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Vulnerability in AntiXSS Library Could Allow Information Disclosure (2607664)
Informations
Name MS12-007 First vendor Publication 2012-01-10
Vendor Microsoft Last vendor Modification 2012-01-16
Severity (Vendor) Important Revision 2.1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Severity Rating: Important

Revision Note: V2.1 (January 16, 2012): Added a link to Microsoft Knowledge Base Article 2607664 under Known Issues in the Executive Summary. Also, revised entry in the update FAQ to clarify why the upgrade to AntiXSS Library version 4.2.1 is only available from the Microsoft Download Center.

Summary: This security update resolves one privately reported vulnerability in the Microsoft Anti-Cross Site Scripting (AntiXSS) Library. The vulnerability could allow information disclosure if an attacker passes a malicious script to a website using the sanitization function of the AntiXSS Library. The consequences of the disclosure of that information depends on the nature of the information itself. Note that this vulnerability would not allow an attacker to execute code or to elevate the attacker's user rights directly, but it could be used to produce information that could be used to try to further compromise the affected system. Only sites that use the sanitization module of the AntiXSS Library are affected by this vulnerability.

Original Source

Url : http://technet.microsoft.com/en-us/security/bulletin/ms12-007

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-79 Failure to Preserve Web Page Structure ('Cross-site Scripting') (CWE/SANS Top 25)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:14314
 
Oval ID: oval:org.mitre.oval:def:14314
Title: AntiXSS Library Bypass Vulnerability
Description: The Microsoft Anti-Cross Site Scripting (AntiXSS) Library 3.x and 4.0 does not properly evaluate characters after the detection of a Cascading Style Sheets (CSS) escaped character, which allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML input, aka "AntiXSS Library Bypass Vulnerability."
Family: windows Class: vulnerability
Reference(s): CVE-2012-0007
 Version: 5
Platform(s): Microsoft Windows XP
Microsoft Windows Server 2003
Microsoft Windows Vista
Microsoft Windows Server 2008
Microsoft Windows Server 2008 R2
Microsoft Windows 7
 Product(s): Microsoft Anti-Cross Site Scripting Library V3.x
Microsoft Anti-Cross Site Scripting Library V4.0
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2

OpenVAS Exploits

Date Description
2012-01-11 Name : Microsoft AntiXSS Library Information Disclosure Vulnerability (2607664)
File : nvt/secpod_ms12-007.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
78208 Microsoft AntiXSS Library Sanitization Module Escaped CSS Content Parsing XSS...

Microsoft AntiXSS Library contains a flaw related to the sanitizing of escaped CSS content. This may allow a remote attacker to bypass protections and conduct cross-site scripting attacks.

Information Assurance Vulnerability Management (IAVM)

Date Description
2012-01-12 IAVM : 2012-B-0003 - Information Disclosure Vulnerability in Microsoft AntiXSS Library
Severity : Category II - VMSKEY : V0031007

Snort® IPS/IDS

Date Description
2014-04-19 Microsoft Anti-Cross Site Scripting library bypass attempt
RuleID : 30233 - Revision : 2 - Type : OS-WINDOWS
2014-04-19 Microsoft Anti-Cross Site Scripting library bypass attempt
RuleID : 30232 - Revision : 2 - Type : OS-WINDOWS
2014-01-10 Microsoft Anti-Cross Site Scripting library bypass attempt
RuleID : 21405 - Revision : 9 - Type : OS-WINDOWS
2014-01-10 Microsoft Anti-Cross Site Scripting library bypass attempt
RuleID : 20884 - Revision : 11 - Type : OS-WINDOWS

Nessus® Vulnerability Scanner

Date Description
2012-01-10 Name : A library is installed on the remote host that is affected by an information ...
File : smb_nt_ms12-007.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2014-04-19 21:20:56
  • Multiple Updates
2014-02-17 11:47:14
  • Multiple Updates
2014-01-19 21:30:47
  • Multiple Updates
2013-11-11 12:41:27
  • Multiple Updates