bugtraq - OS Command Injection Infoblox Network Automation

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Message-Id: <201407091404.s69E4YWv013358@sf01web2.securityfocus.com>
Date: Wed, 9 Jul 2014 14:04:34 GMT
From: nate@...thsecurity.com
To: bugtraq@...urityfocus.com
Subject: OS Command Injection Infoblox Network Automation

Product: Network Automation, licensed as:
•         NetMRI
•         Switch Port Manager
•         Automation Change Manager
•         Security Device Controller

Vendor: Infoblox
Vulnerable Version(s): 6.4.X.X-6.8.4.X
Tested Version: 6.8.2.11

Vendor Notification: May 12th, 2014 
Vendor Patch Availability to Customers: May 16th, 2014
Public Disclosure: July 9th, 2014 

Vulnerability Type: OS Command Injection [CWE-78]
CVE Reference: CVE-2014-3418
Risk Level: High 
CVSSv2 Base Score: 10 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
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 the Infoblox Network Automation management web interface. This attack does not require authentication of any kind.

1) OS Command Injection in Infoblox Network Automation Products: CVE-2014-3418

The vulnerability exists due to insufficient sanitization of user-supplied data in in skipjackUsername POST parameter. A remote attacker can inject operating system commands as the root user, and completely compromise the operating system.

The following is the relevant portion of the multipart/form-data POST request to netmri/config/userAdmin/login.tdf

Content-Disposition: form-data; name="skipjackUsername"

admin`ping -n 20 127.0.0.1`

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Solution:

Infoblox immediately released a hotfix to remediate this vulnerability on existing installations (v6.X-NETMRI-20710.gpg). 
The flaw was corrected in the 6.8.5 release (created expressly for dealing with this issue), and that release has been put into manufacturing for new appliances.

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Proof of Concept:

In addition to manual exploitation via the above mentioned vector, proof of concept is provided in the form of a module for the metasploit framework.

https://github.com/depthsecurity/NetMRI-2014-3418
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References:

[1] Depth Security Advisory - http://blog.depthsecurity.com/2014/07/os-command-injection-in-infoblox-netmri.html  - OS Command Injection in NetMRI.
[2] NetMRI - http://www.infoblox.com/products/network-automation/netmri - NetMRI is an Enterprise Network Management Appliance.
[3] Common Weakness Enumeration (CWE) - http://cwe.mitre.org/ - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
[4] NetMRI Metasploit Module - https://github.com/depthsecurity/NetMRI-2014-3418