[FD] CVE-2014-3418 - OS Command Injection Infoblox Network Automation

[Nate Kettlewell <nate@xxxxxxxxxxxxxxxxx>]

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 Blog - 
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

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