Microsoft Exchange 2007/2010 RSS Feed code injection

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Microsoft Exchange 2007/2010. This issue affects some unknown processing of the component RSS Feed Handler. The manipulation leads to code injection. This vulnerability is documented as CVE-2012-4791. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Exchange 2007/2010 (Groupware Software). This issue affects some unknown functionality of the component RSS Feed Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is availability. The summary by CVE is:

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."

The bug was discovered 12/11/2012. The weakness was released 12/11/2012 with Microsoft as MS12-080 as confirmed bulletin (Microsoft Technet). The advisory is shared at technet.microsoft.com. The public release was coordinated with Microsoft. The identification of this vulnerability is CVE-2012-4791 since 09/06/2012. The attack may be initiated remotely. A simple authentication is required for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 63227 (MS12-080: Vulnerabilities in Microsoft Exchange Server Could Allow Remote Code Execution (2784126)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 74262 (Microsoft Exchange Server Remote Code Execution Vulnerability (MS12-080)).

Applying the patch KB2746157/KB2787763/KB2785908 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (80523), Tenable (63227), SecurityFocus (BID 56836†), OSVDB (88314†) and Secunia (SA51474†). Entry connected to this vulnerability is available at VDB-6717. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.3
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 63227
Nessus Name: MS12-080: Vulnerabilities in Microsoft Exchange Server Could Allow Remote Code Execution (2784126)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902697
OpenVAS Name: MS Exchange Server Remote Code Execution Vulnerabilities (2784126)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: KB2746157/KB2787763/KB2785908

Timelineinfo

09/06/2012 🔍
12/06/2012 +91 days 🔍
12/11/2012 +5 days 🔍
12/11/2012 +0 days 🔍
12/11/2012 +0 days 🔍
12/11/2012 +0 days 🔍
12/11/2012 +0 days 🔍
12/11/2012 +0 days 🔍
12/11/2012 +0 days 🔍
12/11/2012 +0 days 🔍
12/12/2012 +1 days 🔍
12/14/2012 +2 days 🔍
04/20/2021 +3049 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS12-080
Organization: Microsoft
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-4791 (🔍)
GCVE (CVE): GCVE-0-2012-4791
GCVE (VulDB): GCVE-100-7121

OVAL: 🔍

X-Force: 80523 - Microsoft Exchange Server RSS feeds denial of service, Medium Risk
SecurityFocus: 56836 - Microsoft Exchange Server RSS Feed Remote Denial of Service Vulnerability
Secunia: 51474 - Microsoft Exchange Server Outside In Technology and RSS Feed Parsing Vulnerabilities, Highly Critical
OSVDB: 88314
SecurityTracker: 1027857 - Microsoft Exchange Server RSS Feed Bug Lets Remote Users Deny Service
Vulnerability Center: 37657 - [MS12-080] Microsoft Exchange Server 2007 and 2010 Remote DoS Vulnerability via a Crafted RSS Feed, Low

See also: 🔍

Entryinfo

Created: 12/14/2012 17:50
Updated: 04/20/2021 09:18
Changes: 12/14/2012 17:50 (88), 04/22/2017 17:06 (5), 04/20/2021 09:18 (3)
Complete: 🔍
Committer: olku
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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