Vulnerabilities > CVE-2011-1894 - Cross-site Scripting vulnerability in Microsoft products
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
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."
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 16 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Cross Site Scripting through Log Files An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
- Embedding Scripts in Non-Script Elements This attack is a form of Cross-Site Scripting (XSS) where malicious scripts are embedded in elements that are not expected to host scripts such as image tags (<img>), comments in XML documents (< !-CDATA->), etc. These tags may not be subject to the same input validation, output validation, and other content filtering and checking routines, so this can create an opportunity for an attacker to tunnel through the application's elements and launch a XSS attack through other elements. As with all remote attacks, it is important to differentiate the ability to launch an attack (such as probing an internal network for unpatched servers) and the ability of the remote attacker to collect and interpret the output of said attack.
- Embedding Scripts within Scripts An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
- Cross-Site Scripting in Error Pages An attacker distributes a link (or possibly some other query structure) with a request to a third party web server that is malformed and also contains a block of exploit code in order to have the exploit become live code in the resulting error page. When the third party web server receives the crafted request and notes the error it then creates an error message that echoes the malformed message, including the exploit. Doing this converts the exploit portion of the message into to valid language elements that are executed by the viewing browser. When a victim executes the query provided by the attacker the infected error message error message is returned including the exploit code which then runs in the victim's browser. XSS can result in execution of code as well as data leakage (e.g. session cookies can be sent to the attacker). This type of attack is especially dangerous since the exploit appears to come from the third party web server, who the victim may trust and hence be more vulnerable to deception.
- Cross-Site Scripting Using Alternate Syntax The attacker uses alternate forms of keywords or commands that result in the same action as the primary form but which may not be caught by filters. For example, many keywords are processed in a case insensitive manner. If the site's web filtering algorithm does not convert all tags into a consistent case before the comparison with forbidden keywords it is possible to bypass filters (e.g., incomplete black lists) by using an alternate case structure. For example, the "script" tag using the alternate forms of "Script" or "ScRiPt" may bypass filters where "script" is the only form tested. Other variants using different syntax representations are also possible as well as using pollution meta-characters or entities that are eventually ignored by the rendering engine. The attack can result in the execution of otherwise prohibited functionality.
Msbulletin
| bulletin_id | MS11-037 |
| bulletin_url | |
| date | 2011-06-14T00:00:00 |
| impact | Information Disclosure |
| knowledgebase_id | 2544893 |
| knowledgebase_url | |
| severity | Important |
| title | Vulnerability in MHTML Could Allow Information Disclosure |
Nessus
| NASL family | Windows : Microsoft Bulletins |
| NASL id | SMB_NT_MS11-037.NASL |
| description | A flaw exists in the way MHTML interprets MIME-formatted requests for content blocks within a document. By exploiting the flaw, an attacker could cause a victim to run malicious scripts when visiting various websites that could result in information disclosure. |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 55117 |
| published | 2011-06-15 |
| reporter | This script is Copyright (C) 2011-2018 Tenable Network Security, Inc. |
| source | https://www.tenable.com/plugins/nessus/55117 |
| title | MS11-037: Vulnerability in MHTML Could Allow Information Disclosure (2544893) |
| code | |
Oval
| accepted | 2012-07-30T04:00:06.181-04:00 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| class | vulnerability | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| definition_extensions |
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| description | 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." | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| family | windows | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| id | oval:org.mitre.oval:def:12494 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| status | accepted | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| submitted | 2011-06-14T13:00:00 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| title | MHTML Mime-Formatted Request Vulnerability | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| version | 79 |
Seebug
| bulletinFamily | exploit |
| description | Bugtraq ID: 48205 CVE ID：CVE-2011-1894 Microsoft Windows是一款流行的操作系统。 MHTML(聚合HTML MIME封装)协议处理器解析MIME格式化请求存在错误，攻击者可以利用漏洞进行跨站脚本攻击，可获得敏感信息或劫持用户会话 Microsoft Windows XP Professional SP3 Microsoft Windows XP Professional SP2 Microsoft Windows XP Professional SP1 Microsoft Windows XP Professional Microsoft Windows XP Home SP3 Microsoft Windows XP Home SP2 Microsoft Windows XP Home SP1 Microsoft Windows XP Embedded SP3 Microsoft Windows XP Embedded SP2 Microsoft Windows XP Embedded SP1 Microsoft Windows XP Embedded Microsoft Windows XP Gold Embedded Microsoft Windows XP 0 Microsoft Windows XP - Sp1 X64 Microsoft Windows XP - Gold X64 Microsoft Windows XP - Gold Home Microsoft Windows Vista x64 Edition SP2 Microsoft Windows Vista x64 Edition SP1 Microsoft Windows Vista SP2 Beta Microsoft Windows Vista SP2 Microsoft Windows Vista SP1 Microsoft Windows Vista Home Premium SP2 Microsoft Windows Vista Home Premium SP1 Microsoft Windows Vista Home Premium Microsoft Windows Vista 3.0 Microsoft Windows Server 2008 R2 x64 SP1 Microsoft Windows Server 2008 R2 x64 0 Microsoft Windows Server 2008 R2 Itanium SP1 Microsoft Windows Server 2008 R2 Itanium 0 Microsoft Windows Server 2008 for x64-based Systems SP2 Microsoft Windows Server 2008 for x64-based Systems R2 Microsoft Windows Server 2008 for Itanium-based Systems SP2 Microsoft Windows Server 2008 for Itanium-based Systems 0 Microsoft Windows Server 2008 for 32-bit Systems SP2 Microsoft Windows Server 2008 for 32-bit Systems 0 Microsoft Windows Server 2003 x64 SP2 Microsoft Windows Server 2003 Itanium SP2 Microsoft Windows Server 2003 SP2 Microsoft Windows 7 for x64-based Systems SP1 Microsoft Windows 7 for x64-based Systems 0 Microsoft Windows 7 for 32-bit Systems SP1 Microsoft Windows 7 for 32-bit Systems 厂商解决方案 用户可参考如下供应商提供的安全公告获得补丁信息： http://www.microsoft.com/technet/security/Bulletin/MS11-037.mspx |
| id | SSV:20621 |
| last seen | 2017-11-19 |
| modified | 2011-06-16 |
| published | 2011-06-16 |
| reporter | Root |
| title | Microsoft Windows MHTML Mime-格式化请求信息泄露漏洞 |