Microsoft SharePoint/Lync/Infopath 2007/2010 HTML Sanitization HTML injection

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft SharePoint, Lync and Infopath 2007/2010 and classified as problematic. This issue affects some unknown processing of the component HTML Sanitization. Such manipulation leads to HTML injection. This vulnerability is documented as CVE-2012-2520. The attack can be executed remotely. Additionally, an exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Microsoft SharePoint, Lync and Infopath 2007/2010 (Groupware Software). Affected by this issue is an unknown code of the component HTML Sanitization. The manipulation with an unknown input leads to a html injection 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. CVE summarizes:

Cross-site scripting (XSS) vulnerability in Microsoft InfoPath 2007 SP2 and SP3 and 2010 SP1, Communicator 2007 R2, Lync 2010 and 2010 Attendee, SharePoint Server 2007 SP2 and SP3 and 2010 SP1, Groove Server 2010 SP1, Windows SharePoint Services 3.0 SP2, SharePoint Foundation 2010 SP1, and Office Web Apps 2010 SP1 allows remote attackers to inject arbitrary web script or HTML via a crafted string, aka "HTML Sanitization Vulnerability."

The weakness was released 10/09/2012 by Drew Hintz with Google Security Team as MS12-066 as confirmed bulletin (Website). The advisory is available at technet.microsoft.com. The public release was coordinated with the vendor. This vulnerability is handled as CVE-2012-2520 since 05/09/2012. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a private exploit is available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 62461 (MS12-066: Vulnerability in HTML Sanitization Component Could Allow Elevation of Privilege (2741517)), 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 90836 (Microsoft HTML Sanitization Component Elevation of Privilege Vulnerability (MS12-066)).

Applying the patch MS12-066 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 (78852), Zero-Day.cz (377), Tenable (62461), SecurityFocus (BID 55797†) and OSVDB (86059†). technet.microsoft.com is providing further details. Entries connected to this vulnerability are available at VDB-6621, VDB-6622, VDB-6623 and VDB-6624. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: HTML injection
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 62461
Nessus Name: MS12-066: Vulnerability in HTML Sanitization Component Could Allow Elevation of Privilege (2741517)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902688
OpenVAS Name: Microsoft Products HTML Sanitisation Component XSS Vulnerability (2741517)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: MS12-066

Timelineinfo

05/09/2012 🔍
10/09/2012 +153 days 🔍
10/09/2012 +0 days 🔍
10/09/2012 +0 days 🔍
10/09/2012 +0 days 🔍
10/09/2012 +0 days 🔍
10/09/2012 +0 days 🔍
10/09/2012 +0 days 🔍
10/09/2012 +0 days 🔍
10/10/2012 +1 days 🔍
10/10/2012 +0 days 🔍
10/10/2012 +0 days 🔍
12/31/2024 +4465 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS12-066
Researcher: Drew Hintz
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-2520 (🔍)
GCVE (CVE): GCVE-0-2012-2520
GCVE (VulDB): GCVE-100-6626

OVAL: 🔍
IAVM: 🔍

X-Force: 78852
SecurityFocus: 55797 - Microsoft SharePoint And Microsoft Lync HTML Sanitization Cross Site Scripting Vulnerability
Secunia: 50855 - Microsoft Products HTML Sanitisation Component Cross-Site Scripting Vulnerability, Less Critical
OSVDB: 86059
SecurityTracker: 1027625 - Microsoft Groove Server HTML Sanitizer Flaw Permits Cross-Site Scripting Attacks
Vulnerability Center: 36428 - [MS12-066] Multiple Microsoft Product HTML Sanitization Vulnerabilities Allow XSS Attacks, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 10/10/2012 12:46
Updated: 12/31/2024 15:57
Changes: 10/10/2012 12:46 (89), 04/17/2017 19:49 (7), 04/14/2021 18:05 (3), 07/14/2024 21:17 (22), 12/31/2024 15:57 (2)
Complete: 🔍
Committer:
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!