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Category:   Application (Generic)  >   Microsoft SharePoint Vendors:   Microsoft
Microsoft SharePoint Input Validation Hole Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1018789
SecurityTracker URL:  http://securitytracker.com/id/1018789
CVE Reference:   CVE-2007-2581   (Links to External Site)
Date:  Oct 9 2007
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  

Description:   A vulnerability was reported in Microsoft SharePoint. A remote user can conduct cross-site scripting attacks.

The software does not properly filter HTML code from user-supplied input before displaying the input. A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Microsoft SharePoint software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

A demonstration exploit URL is provided:

http://[target]/sharepoint/default.aspx/%22);}if(true){alert(%22qwertytis

Solarius reported this vulnerability.


Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Microsoft SharePoint software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   The vendor has issued the following fixes:

2003 SP1 - Microsoft Windows SharePoint Services 3.0:

http://www.microsoft.com/downloads/details.aspx?FamilyId=76FC2225-2802-46E5-A294-A842E3841877

2003 SP2 - Microsoft Windows SharePoint Services 3.0:

http://www.microsoft.com/downloads/details.aspx?FamilyId=76FC2225-2802-46E5-A294-A842E3841877

2003 x64 - Microsoft Windows SharePoint Services 3.0:

http://www.microsoft.com/downloads/details.aspx?FamilyId=667335DD-DF2E-4F14-A130-5758701BE055

2003 x64 SP2 - Microsoft Windows SharePoint Services 3.0:

http://www.microsoft.com/downloads/details.aspx?FamilyId=667335DD-DF2E-4F14-A130-5758701BE055

Microsoft Office SharePoint Server 2007:

http://www.microsoft.com/downloads/details.aspx?FamilyId=AAEA9695-F541-4C4C-9107-81EAD5CFC8C9

Microsoft Office SharePoint Server 2007 x64 Edition:

http://www.microsoft.com/downloads/details.aspx?FamilyId=1D319164-D133-4493-BE27-1AEDA62362C4

The Microsoft advisory is available at:

http://www.microsoft.com/technet/security/bulletin/ms07-059.mspx

Vendor URL:  www.microsoft.com/technet/security/bulletin/ms07-059.mspx (Links to External Site)
Cause:   Input validation error
Underlying OS:   Windows (2003)

Message History:   None.


 Source Message Contents

Date:  Tue, 9 Oct 2007 13:50:12 -0400
Subject:  Microsoft Security Bulletin MS07-059 - Important: Vulnerability in Windows SharePoint Services 3.0 and Office SharePoint Server 2007 Could Result in Elevation of Privilege Within the SharePoint Site (942017)


http://www.microsoft.com/technet/security/bulletin/ms07-059.mspx

CVE-2007-2581

 
 


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