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Category:   Application (Generic)  >   VMware Vendors:   VMware
VMware Remote Console Format String Flaw Lets Users Execute Arbitrary Code
SecurityTracker Alert ID:  1023837
SecurityTracker URL:  http://securitytracker.com/id/1023837
CVE Reference:   CVE-2009-3732   (Links to External Site)
Date:  Apr 9 2010
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): vCenter 4.0, ESX 4.0
Description:   A vulnerability was reported in VMware. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create specially crafted HTML that, when loaded by the target user, will trigger a format string flaw in the VMware Remote Console (VMrc) and execute arbitrary code on the target system. The code will run with the privileges of the target user.

Windows-based systems are affected.

Alexey Sintsov from Digital Security Research Group reported this vulnerability.

Impact:   A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued the following remediation instructions (also available in the vendor's advisory):

Remediation of this issue on Windows-based systems requires the
following steps (Linux-based systems are not affected):

- Uninstall affected versions of VMrc from the systems where the
VMrc plug-in has been installed (use the Windows Add/Remove
Programs interface)
- Install vCenter 4.0 Update 1 or install the ESX 4.0 patch
ESX400-200911223-UG
- Login into vCenter 4.0 Update 1 or ESX 4.0 with patch
ESX400-200911223-UG using WebAccess on the system where the VMrc
needs to be re-installed
- Re-install VMrc by going to the console tab in WebAccess. The
Console tab is selectable after selecting a virtual machine.

The vendor's advisory will be available at:

http://www.vmware.com/security/advisories/

Vendor URL:  www.vmware.com/security/advisories/ (Links to External Site)
Cause:   Input validation error, State error

Message History:   None.


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