SolarWinds Virtualization Manager - Privilege Escalation

Product: Solarwinds Virtualization Manager



Vendor: Solarwinds

Vulnerable Version(s): < 6.3.1

Tested Version: 6.3.1



Vendor Notification: April 25th, 2016

Vendor Patch Availability to Customers: June 1st, 2016

Public Disclosure: June 14th, 2016



Vulnerability Type: Security Misconfiguration

CVE Reference: CVE-2016-3643

Risk Level: High

CVSSv2 Base Score: 7.8 (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:W/RC:C/CR:M/IR:M/AR:M/MAV:L/MAC:L/MPR:L/MUI:N/MS:C/MC:H/MI:H/MA:H)

Solution Status: Solution Available



Discovered and Provided: Nate Kettlewell, Depth Security ( https://www.depthsecurity.com/ )



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Advisory Details:



Depth Security discovered a vulnerability in Solarwinds Virtualization Manager appliance.

This attack requires a user to have an operating system shell on the vulnerable appliance.



1) Misconfiguration of sudo in Solarwinds Virtualization Manager: CVE-2016-3643



The vulnerability exists due to the miconfiguration of sudo in that it allows any local user to use sudo to execute commands as the superuser.

A local attacker can obtain root privileges to the operating system regardless of privilege level.



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Solution:



Solarwinds has released a hotfix to remediate this vulnerability on existing installations.



This flaw as well as several others have been corrected and that release has been put into manufacturing for new appliances.



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Proof of Concept:



The following is an example of the commands necessary for a low-privileged user to dump the contents of the "/etc/shadow" file by using sudo.



sudo cat /etc/passwd



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References:



[1] Solarwinds Virtualization Manager- http://www.solarwinds.com/virtualization-manager - Solarwinds Virtualization Manager provides monitoring and remediation for virtualized environments.