Microsoft Windows MHTML cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability was found in Microsoft Windows (Operating System) (unknown version). It has been rated as critical. This issue affects an unknown code block of the component MHTML Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The MHTML protocol handler in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly handle a MIME format in a request for embedded content in an HTML document, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted EMBED element in a web page that is visited in Internet Explorer, aka "MHTML Mime-Formatted Request Vulnerability."

The weakness was presented 06/15/2011 by latentwind with Microsoft as MS11-037 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. The identification of this vulnerability is CVE-2011-1894 since 05/04/2011. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 55117 (MS11-037: Vulnerability in MHTML Could Allow Information Disclosure (2544893)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l.

Upgrading eliminates this vulnerability. Applying the patch MS11-037 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4759.

The vulnerability is also documented in the databases at X-Force (67759) and Tenable (55117). See 4371 for similar entry.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55117
Nessus Name: MS11-037: Vulnerability in MHTML Could Allow Information Disclosure (2544893)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902441
OpenVAS Name: Windows MHTML Information Disclosure Vulnerability (2544893)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: MS11-037
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍

Timelineinfo

05/04/2011 🔍
06/14/2011 +41 days 🔍
06/14/2011 +0 days 🔍
06/14/2011 +0 days 🔍
06/14/2011 +0 days 🔍
06/15/2011 +1 days 🔍
06/15/2011 +0 days 🔍
06/15/2011 +0 days 🔍
06/15/2011 +0 days 🔍
06/16/2011 +1 days 🔍
06/20/2011 +4 days 🔍
03/19/2021 +3560 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS11-037
Researcher: latentwind
Organization: Microsoft
Status: Confirmed

CVE: CVE-2011-1894 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 67759
SecurityTracker: 1025655 - Microsoft MHTML Input Validation Hole Permits Cross-Site Scripting Attacks
Vulnerability Center: 31805 - [MS11-037] Microsoft Windows Remote Information Disclosure Vulnerability via MIME-Formatted Requests, High
SecurityFocus: 48205 - Microsoft Windows MHTML Mime-Formatted Request Information Disclosure Vulnerability
Secunia: 43980 - Microsoft Windows MHTML Mime-Formatted Request Cross-Site Scripting, Less Critical

See also: 🔍

Entryinfo

Created: 06/20/2011 02:00
Updated: 03/19/2021 12:00
Changes: 06/20/2011 02:00 (86), 03/24/2017 07:59 (15), 03/19/2021 12:00 (3)
Complete: 🔍

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