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Category:   Application (Generic)  >   VMware Vendors:   VMware, Inc.
VMware View Lets Local Users Gain Elevated Privileges and Lets Remote Users Conduct Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1026814
SecurityTracker URL:  http://securitytracker.com/id/1026814
CVE Reference:   CVE-2012-1508, CVE-2012-1509, CVE-2012-1510, CVE-2012-1511   (Links to External Site)
Date:  Mar 16 2012
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): View 4.6.0 and prior
Description:   Several vulnerabilities were reported in VMware View. A local user can obtain elevated privileges on the target system. A remote user can conduct cross-site scripting attacks.

A local user on a View virtual desktop can trigger a buffer overflow or null pointer dereference in the display drivers to execute arbitrary code on the target system with elevated privileges.

A null pointer dereference in XPDM may occur [CVE-2012-1508].

A buffer overflow in XPDM may occur [CVE-2012-1509].

A buffer overflow in WDDM may occur [CVE-2012-1510].

Tarjei Mandt reported these vulnerabilities.

The View Manager Portal does not properly filter HTML code from user-supplied input before displaying the input [CVE-2012-1511]. 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 VMware 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.

Jeremy Conway reported this vulnerability.

Impact:   A local user can obtain elevated privileges on the target system.

A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the VMware 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 a fix (View 4.6.1).

The vendor's advisory is available at:

http://www.vmware.com/security/advisories/VMSA-2012-0004.html

Vendor URL:  www.vmware.com/security/advisories/VMSA-2012-0004.html (Links to External Site)
Cause:   Input validation error
Underlying OS:  

Message History:   None.


 Source Message Contents

Date:  Thu, 15 Mar 2012 21:33:53 -0700
Subject:  [Security-announce] VMSA-2012-0004 VMware View privilege escalation and cross-site scripting

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- -----------------------------------------------------------------------
                   VMware Security Advisory

Advisory ID: VMSA-2012-0004
Synopsis:    VMware View privilege escalation and cross-site scripting
Issue date:  2012-03-15
Updated on:  2012-03-15 (initial advisory)
CVE numbers: CVE-2012-1508, CVE-2012-1509, CVE-2012-1510, CVE-2012-1511
 -----------------------------------------------------------------------

1. Summary

   VMware View addresses privilege escalation and cross-site scripting
   issues.

2. Relevant releases

   View 4.6.0 and older.

3. Problem Description

 a. VMware Virtual Desktop Display Driver Privilege Escalation

    The VMware XPDM and WDDM display drivers contain buffer overflow
    vulnerabilities and the XPDM display driver does not properly check
    for NULL pointers. Exploitation of these issues may lead to local
    privilege escalation on View virtual desktops.

    VMware would like to thank Tarjei Mandt for reporting theses issues
    to us.
 
    The Common Vulnerabilities and Exposures project (cve.mitre.org)
    has assigned the names CVE-2012-1509 (XPDM buffer overrun),
    CVE-2012-1510 (WDDM buffer overrun) and CVE-2012-1508 (XPDM null
    pointer dereference) to these issues.
    
    Column 4 of the following table lists the action required to
    remediate the vulnerability in each release, if a solution is
    available.
 
    VMware         Product   Running  Replace with/
    Product *      Version   on       Apply Patch **
    =============  ========  =======  =================
    View           5.0       Windows  not affected
    View           4.6       Windows  View 4.6.1
    View           4.0       Windows  affected, no patch planned

    * Other affected products are documented in VMSA-2012-0005; this
      advisory is exclusively for View.

   ** Notes on updating VMware Virtual Agents:
      
      In order to remediate the problem, VMware View Agents must be
      updated in any pre-existing virtual desktops. The XPDM and WDDM
      drivers are part of the View Agent.

      View Agents that have moved to View 5.0 from a lower View version
      are affected if their View Agent was not updated after the move.

 b. View Manager Portal Cross-site Scripting

    A cross-site scripting vulnerability in View Manager Portal may
    allow a remote attacker to run scripts in the victim's browser. The
    attacker can trigger this vulnerability by supplying a crafted URL
    to the victim and convincing them to click on the link.
    
    VMware would like to thank Jeremy Conway for reporting this issue
    to us.

    The Common Vulnerabilities and Exposures project (cve.mitre.org)
    has assigned the name CVE-2012-1511 to this issue.
    
    Column 4 of the following table lists the action required to
    remediate the vulnerability in each release, if a solution is
    available.
 
    VMware         Product   Running  Replace with/
    Product        Version   on       Apply Patch
    =============  ========  =======  =================
    View           5.0       Windows  not affected
    View           4.6       Windows  View 4.6.1
    View           4.0       Windows  affected, no patch planned

4. Solution

   Please review the patch/release notes for your product and
   version and verify the checksum of your downloaded file.

   View 4.6.1
   ----------
   http://downloads.vmware.com/d/info/desktop_downloads/vmware_view/4_6
   
   Release Notes
   https://www.vmware.com/support/view46/doc/view-461-release-notes.html

   VMware View Connection Server (32-bit)
   VMware-viewconnectionserver-4.6.1-640196.exe
   md5sum:bfa8f091628bf257c94255b62b4ea8d6
   sha1sum:65a1c7cee3133ee54b7da5f5c9439577991ed282

   VMware View Connection Server (64-bit)
   VMware-viewconnectionserver-x86_64-4.6.1-640196.exe
   md5sum:64da571b4ed650395b8e6d6f4d17bab1
   sha1sum:6b0a82b0ddce5e4d6c8dddd0f86e80e85802a572

   VMware View Agent (32-bit)
   VMware-viewagent-4.6.1-640196.exe
   md5sum:3dfb8d5d24a75e77f8ac08d3657b764a
   sha1sum:cede74042154b09e7489052d88953fe860b80125

   VMware View Agent (64-bit)
   VMware-viewagent-x86_64-4.6.1-640196.exe
   md5sum:227f688a49ccfa29a7d9950be8b444e3
   sha1sum:00001411021327b8bdf04721dbcf3001409bdf4c
   
5. References

   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1508
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1509
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1510
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1511

 -----------------------------------------------------------------------

6. Change log

   2012-03-15 VMSA-2012-0004
   Initial security advisory in conjunction with the release of
   View 4.6.1 on 2012-03-15.

 -----------------------------------------------------------------------

7. Contact

E-mail list for product security notifications and announcements:
http://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce

This Security Advisory is posted to the following lists:

  * security-announce at lists.vmware.com
  * bugtraq at securityfocus.com
  * full-disclosure at lists.grok.org.uk

E-mail:  security at vmware.com
PGP key at: http://kb.vmware.com/kb/1055

VMware Security Advisories
http://www.vmware.com/security/advisories

VMware security response policy
http://www.vmware.com/support/policies/security_response.html

General support life cycle policy
http://www.vmware.com/support/policies/eos.html

VMware Infrastructure support life cycle policy
http://www.vmware.com/support/policies/eos_vi.html

Copyright 2012 VMware Inc.  All rights reserved.

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_______________________________________________
Security-announce mailing list
Security-announce@lists.vmware.com
http://lists.vmware.com/mailman/listinfo/security-announce
 
 


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