Vulnerabilities > CVE-2012-4791 - Code Injection vulnerability in Microsoft Exchange Server 2007/2010
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
SINGLE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL Summary
Microsoft Exchange Server 2007 SP3 and 2010 SP1 and SP2 allows remote authenticated users to cause a denial of service (Information Store service hang) by subscribing to a crafted RSS feed, aka "RSS Feed May Cause Exchange DoS Vulnerability."
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 3 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Leverage Executable Code in Non-Executable Files An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
- Manipulating User-Controlled Variables This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An attacker can override environment variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the attacker can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.
Msbulletin
| bulletin_id | MS12-080 |
| bulletin_url | |
| date | 2012-12-11T00:00:00 |
| impact | Remote Code Execution |
| knowledgebase_id | 2784126 |
| knowledgebase_url | |
| severity | Critical |
| title | Vulnerabilities in Microsoft Exchange Server Could Allow Remote Code Execution |
Nessus
| NASL family | Windows : Microsoft Bulletins |
| NASL id | SMB_NT_MS12-080.NASL |
| description | The version of Microsoft Exchange installed on the remote host has the following vulnerabilities : - Multiple code execution vulnerabilities in the Oracle Outside In libraries, used by the WebReady Document Viewing feature of Outlook Web App (OWA). An attacker could exploit this by sending a malicious email attachment to a user who views it in OWA, resulting in arbitrary code execution as LocalService. (CVE-2012-3214, CVE-2012-3217) - A denial of service caused by Exchange improperly handling RSS feeds. An attacker with a valid email account on the Exchange server could create a specially crafted RSS feed, which could cause the system to become unresponsive and result in data corruption. (CVE-2012-4791) |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 63227 |
| published | 2012-12-11 |
| reporter | This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/63227 |
| title | MS12-080: Vulnerabilities in Microsoft Exchange Server Could Allow Remote Code Execution (2784126) |
| code | |
Oval
| accepted | 2013-01-21T04:00:36.888-05:00 | ||||||||||||
| class | vulnerability | ||||||||||||
| contributors |
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| definition_extensions |
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| description | Microsoft Exchange Server 2007 SP3 and 2010 SP1 and SP2 allows remote authenticated users to cause a denial of service (Information Store service hang) by subscribing to a crafted RSS feed, aka "RSS Feed May Cause Exchange DoS Vulnerability." | ||||||||||||
| family | windows | ||||||||||||
| id | oval:org.mitre.oval:def:16158 | ||||||||||||
| status | accepted | ||||||||||||
| submitted | 2012-12-12T08:43:01 | ||||||||||||
| title | RSS Feed May Cause Exchange DoS Vulnerability - MS12-080 | ||||||||||||
| version | 4 |