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Vulnerability Alert

Microsoft SharePoint Server themeweb.aspx Cross-Site Scripting Vulnerability

 
Threat Type:CWE-79: Cross-Site Scripting (XSS)
IntelliShield ID:25141
Version:1
First Published:2012 February 14 18:24 GMT
Last Published:2012 February 14 18:24 GMT
Port: Not available
CVE:CVE-2012-0144
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:4.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:3.2
 
Version Summary:

Microsoft SharePoint contains a vulnerability that could allow an unauthenticated, remote attacker to conduct cross-site scripting vulnerabilities.  Updates are available.

 
 
Description

Microsoft SharePoint contains a vulnerability that could allow an unauthenticated, remote attacker to conduct cross-site scripting vulnerabilities.

The vulnerability is due to improper validation of user-supplied input to the SharePoint Server.  An unauthenticated, remote attacker could exploit the vulnerability by convincing a user to visit a malicious site.  If successful, the attacker could execute arbitrary script or HTML content in the user's browser.

Microsoft confirmed the vulnerability in a security bulletin and released software updates.

 
Warning Indicators

The following Microsoft products are affected:

  • Microsoft Office SharePoint Server 2010 SP1 and prior
  • Microsoft SharePoint Foundation 2010 SP1 and prior
 
IntelliShield Analysis

To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.

The Cisco Applied Intelligence team has created an Applied Mitigation Bulletin to address vulnerabilities that Microsoft disclosed in the February 2012 security bulletin release. This Cisco bulletin, which assists administrators in identifying or mitigating these vulnerabilities using Cisco devices, is available at the following link: Cisco Applied Mitigation Bulletin: Microsoft Security Bulletin Release for February 2012.

 
Vendor Announcements

Microsoft has released a security bulletin at the following link: MS12-011

 
Impact

An unauthenticated, remote attacker could exploit this vulnerability to access sensitive browser-based information, which could include user authentication credentials.

 
Technical Information

The vulnerability is due to improper validation of user-supplied input to the themeweb.aspx script of SharePoint before returning input to the user.

An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to follow a link that is designed to send malicious input to the vulnerable script.  When processing the supplied data, the application may return unsanitized values to the user rendered in the security context of the affected site.  The attacker could include malicious script or HTML code that, when executed, could allow the attacker to access sensitive browser-based information.

 
Safeguards

Administrators are advised to apply the appropriate updates.

Users are advised not to open e-mail messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.

Administrators may consider using the Microsoft Baseline Security Analyzer (MBSA) scan tool to identify common security misconfigurations and missing security updates on system endpoints.

Administrators are advised to monitor affected systems.

 
Patches/Software

Microsoft customers can obtain updates directly by using the links in the security bulletin. These updates are also distributed by Windows automatic update features and available on the Windows Update website. Microsoft Windows Server Update Services (WSUS), Systems Management Server, and System Center Configuration Manager can assist administrators in deploying software updates.


Signatures
 
Cisco Intrusion Prevention System (IPS) 6.0
Signature IDSignature NameReleaseLatest Release Date
41946/0Microsoft Sharepoint XSS VulnerabilityS6252012 Feb 14 
 
Alert History
 

Initial Release



Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
Microsoft, Inc.Office SharePoint Server 2010 Base, SP1
Microsoft, Inc.SharePoint Foundation 2010 Base, SP1

Associated Products:
N/A




Alerts and bulletins on the Cisco Security Intelligence Operations Portal are highlighted by analysts in the Cisco Threat Operations Center and represent a subset of the comprehensive content that is available through Cisco Security IntelliShield Alert Manager Service. This customizable threat and vulnerability alert service provides security staff with access to timely, accurate, and credible information about threats and vulnerabilities that may affect their environment.


LEGAL DISCLAIMER
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
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