Microsoft Windows MHTML Information Disclosure Vulnerability
Last Update Date:
1 Feb 2011
Release Date:
31 Jan 2011
5388
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RISK: Medium Risk
TYPE: Operating Systems - Windows OS
A vulnerability has been identified in Microsoft Windows, which could be exploited by attackers to gain knowledge of sensitive information. This issue is caused by an error in the way MHTML (MIME Encapsulation of Aggregate HTML) interprets MIME-formatted requests for content blocks within a document, which could allow attackers to inject a client-side script in the response of a web request run in the context of Internet Explorer by tricking a user into following a specially crafted "MHTML:" link.
A proof of concept exploit code is publicly available.
Impact
- Information Disclosure
System / Technologies affected
- Microsoft Windows XP
- Microsoft Windows XP Professional x64 Edition
- Microsoft Windows Server 2003
- Microsoft Windows Server 2003 x64 Edition
- Microsoft Windows Server 2003 for Itanium-based Systems
- Microsoft Windows Vista
- Microsoft Windows Vista x64 Edition
- Microsoft Windows Server 2008 for 32-bit Systems
- Microsoft Windows Server 2008 for x64-based Systems
- Microsoft Windows Server 2008 for Itanium-based Systems
- Microsoft Windows 7 for 32-bit Systems
- Microsoft Windows 7 for x64-based Systems
- Microsoft Windows Server 2008 R2 for x64-based Systems
- Microsoft Windows Server 2008 R2 for Itanium-based Systems
Solutions
There is no patch available for this vulnerability currently.
Workaround
- Enable the MHTML protocol lockdown :
http://support.microsoft.com/kb/2501696
Vulnerability Identifier
Source
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