Vulnerability Alert

Microsoft SharePoint Server inplview.aspx Cross-Site Scripting Vulnerability

 
Threat Type:CWE-79: Cross-Site Scripting (XSS)
IntelliShield ID:25140
Version:5
First Published:2012 February 14 18:23 GMT
Last Published:2012 March 19 16:38 GMT
Port: Not available
CVE:CVE-2012-0017
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:4.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:3.2
 
Version Summary:IntelliShield has updated this alert to report a decrease in intrusion prevention system activity that is related to the Microsoft SharePoint Server inplview.aspx cross-site scripting vulnerability.
 
 
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.?? 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

Microsoft SharePoint Foundation 2010 SP1 and prior is vulnerable.

 
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.

Event data from Cisco Remote Management Services has detected intrusion prevention system signature activity related to this vulnerability.  The data, which was captured on March 15, 2012, could indicate that exploits are no longer occurring in the wild.

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, possibly including user authentication credentials.

 
Technical Information

The vulnerability is due to improper validation of user-supplied input to the inplview.aspx script of Microsoft SharePoint.

An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to follow a malicious URL.? When followed, the URL could send malicious input to the application.? The application fails to check supplied parameters before returning the input to the user's browser session, where the parameters may execute in the security context of the affected site.

 
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
41846/1Generic Cross Site Scripting AttackS6262012 Feb 16 
 
Alert History
 

Version 4, March 6, 2012, 10:21 AM: IntelliShield has updated this alert to report an increase in intrusion prevention system activity that is related to the Microsoft SharePoint Server inplview.aspx cross-site scripting vulnerability.

Version 3, February 23, 2012, 1:39 PM: IntelliShield has updated this alert to report an increase in intrusion prevention system activity that is related to the Microsoft SharePoint Server inplview.aspx cross-site scripting vulnerability.

Version 2, February 21, 2012, 9:26 AM: IntelliShield has updated this alert to report an increase in intrusion prevention system activity that is related to the Microsoft SharePoint Server inplview.aspx cross-site scripting vulnerability.

Version 1, February 14, 2012, 1:23 PM: Microsoft SharePoint contains a vulnerability that could allow an unauthenticated, remote attacker to conduct cross-site scripting vulnerabilities.  Updates are available.



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

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

Associated Products:
N/A




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