Infoblox 6.8.4.x OS Command Injection

`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  
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