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Solarwinds Virtualization Manager 6.3.1 Privilege Escalation

Solarwinds Virtualization Manager 6.3.1 Privilege Escalation
Posted Jun 15, 2016
Authored by Nate Kettlewell

Solarwinds Virtualization Manager versions 6.3.1 and below suffer from a privilege escalation vulnerability due to a misconfiguration of sudo.

tags | exploit
advisories | CVE-2016-3643
MD5 | 10e7ec398fefe10a27919b3459fbdbbc

Solarwinds Virtualization Manager 6.3.1 Privilege Escalation

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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.


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