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Category:   Application (Generic)  >   VMware vCenter Vendors:   VMware
VMware vCenter Server Appliance RVC Bug Lets Remote Authenticated Users Gain Elevated Privileges
SecurityTracker Alert ID:  1030436
SecurityTracker URL:  http://securitytracker.com/id/1030436
CVE Reference:   CVE-2014-3790   (Links to External Site)
Date:  Jun 17 2014
Impact:   Execution of arbitrary code via network, Root access via network
Vendor Confirmed:  Yes  
Version(s): 5.1, 5.5
Description:   A vulnerability was reported in VMware vCenter Server Appliance. A remote authenticated user can execute commands on the target system with elevated privileges.

A remote authenticated user can send specially crafted data to escape a chroot jail via the Ruby vSphere Console (RVC) and execute commands with root privileges.

The vendor was notified on November 7, 2013.

The original advisory is available at:

http://www.zerodayinitiative.com/advisories/ZDI-14-159/

Shanon Olsson (via HP's Zero Day Initiative) reported this vulnerability.

Impact:   A remote authenticated user can execute commands on the target system with elevated privileges.
Solution:   No solution was available at the time of this entry.

The report lists the following vendor-provided remediation instructions [quoted]:

"Remove all users from the shellaccess group with the following command: usermod -R shellaccess LOGIN

OR

Remove the line "AllowGroups shellaccess wheel" from the /etc/ssh/sshd_config Restart the sshd service with the following command: service sshd restart

The vendor's advisory is available at:

http://www.zerodayinitiative.com/advisories/ZDI-14-159/

Vendor URL:  www.vmware.com/ (Links to External Site)
Cause:   Access control error

Message History:   None.


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