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[Full-disclosure] VMSA-2012-0004 VMware View privilege escalation and cross-site scripting

Posted by VMware Security Team 
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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
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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
----------
[downloads.vmware.com]

Release Notes
[www.vmware.com]

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

[cve.mitre.org]
[cve.mitre.org]
[cve.mitre.org]
[cve.mitre.org]

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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.

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7. Contact

E-mail list for product security notifications and announcements:
[lists.vmware.com]

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: [kb.vmware.com]

VMware Security Advisories
[www.vmware.com]

VMware security response policy
[www.vmware.com]

General support life cycle policy
[www.vmware.com]

VMware Infrastructure support life cycle policy
[www.vmware.com]

Copyright 2012 VMware Inc. All rights reserved.

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