Microsoft SharePoint 'EditForm.aspx' CVE-2011-1890 Script Injection Vulnerability

Bugtraq ID:	49010
Class:	Input Validation Error
CVE:	CVE-2011-1890
Remote:	Yes
Local:	No
Published:	Sep 13 2011 12:00AM
Updated:	Sep 13 2011 12:00AM
Credit:	Pedro Jimenez of ITT
Vulnerable:	Microsoft SharePoint Server 2010 Standard Edition 0 Microsoft SharePoint Server 2010 Enterprise Edition 0 Microsoft SharePoint Foundation 2010 0
Not Vulnerable:

Microsoft SharePoint 'EditForm.aspx' CVE-2011-1890 Script Injection Vulnerability

Microsoft SharePoint is prone to a script-injection vulnerability because it fails to properly sanitize user-supplied input.

An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to perform unauthorized actions such as issuing SharePoint commands on the SharePoint site on behalf of the victim.

Microsoft SharePoint 'EditForm.aspx' CVE-2011-1890 Script Injection Vulnerability

Attackers can exploit this issue by enticing an unsuspecting victim to follow a malicious URI.

Microsoft SharePoint 'EditForm.aspx' CVE-2011-1890 Script Injection Vulnerability

Solution:
Vendor updates are available. Please see the references for more information.


Microsoft SharePoint Server 2010 Enterprise Edition 0

• Microsoft Security Update for Microsoft Office SharePoint Server 2010 (KB2494022)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 323


• Microsoft Security Update for Microsoft SharePoint Server 2010 (KB2560885)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 328


• Microsoft Security Update for Microsoft SharePoint Server 2010 (KB2566456)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 371


• Microsoft Security Update for Microsoft SharePoint Server 2010 (KB2566954)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 381


• Microsoft Security Update for Microsoft SharePoint Server 2010 (KB2566958)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 306


• Microsoft Security Update for Microsoft SharePoint Server 2010 (KB2566960)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 380

Microsoft SharePoint Foundation 2010 0

• Microsoft Security Update for Office SharePoint Foundation 2010 (KB2494001)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 391

Microsoft SharePoint Server 2010 Standard Edition 0

• Microsoft Security Update for Microsoft Office SharePoint Server 2010 (KB2494022)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 323


• Microsoft Security Update for Microsoft SharePoint Server 2010 (KB2560885)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 328


• Microsoft Security Update for Microsoft SharePoint Server 2010 (KB2566456)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 371


• Microsoft Security Update for Microsoft SharePoint Server 2010 (KB2566954)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 381


• Microsoft Security Update for Microsoft SharePoint Server 2010 (KB2566958)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 306


• Microsoft Security Update for Microsoft SharePoint Server 2010 (KB2566960)
  http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=27 380

Microsoft SharePoint 'EditForm.aspx' CVE-2011-1890 Script Injection Vulnerability

References:

• SharePoint Server Homepage (Microsoft)
  
• Microsoft Security Bulletin MS11-074 (Microsoft)
  
• Microsoft Security Bulletin MS11-074 - Important (Microsoft)