How I Manage to Hack Manage Engine Bug 3

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CSRF to add admin user Vulnerability In Manage Engine Device Expert

Overview


  •  Title : CSRF to add admin user Vulnerability In Manage Engine Device Expert
  •  Author: Kaustubh G. Padwad
  •  Plugin Homepage: http://www.manageengine.com/products/device-expert/
  •  Severity: HIGH
  •  Version Affected: Version 5.9.9.0 Build: 5990
  •  Version Tested : Version 5.9.9.0 Build: 5990
  •  version patched: Separate Patch release for all version

Description 

About the Product

DeviceExpert is a web–based, multi vendor network change, configuration and compliance management (NCCCM) solution for switches, routers, firewalls and other network devices. Trusted by thousands of network administrators around the world, DeviceExpert helps automate and take total control of the entire life cycle of device configuration management.

Vulnerable Parameter  

Create user form

 About Vulnerability

This Cross-Site Request Forgery vulnerability enables an anonymous attacker to add an admin account into the application. This leads to compromising the whole domain as the application normally uses privileged domain account to perform administration tasks.

Vulnerability Class

Cross Site Request Forgery (https://www.owasp.org/index.php/Cross-Site_Request_Forgery_%28CSRF%29)
Cross Site Scripting       (https://www.owasp.org/index.php/Top_10_2013-A3-Cross-Site_Scripting_(XSS)

Steps to Reproduce: (POC)

* Add follwing code to webserver and send that malicious link to application Admin.
* The admin should be loggedin when he clicks on the link.
* Soical enginering might help here

For Example :- Device password has been changed click here to reset

####################CSRF COde#######################
#
 #
 #

 #
 #
 #
 #  
 #  
 #  
 #
#  
#
# #value="This device group contains all the devices present in the inventory" />
#
#
#
#
#


VIdeo POC

https://youtu.be/_8SoVMkYEjc

Mitigation 


Receved from manage engine team

https://uploads.zohocorp.com/Internal_Useruploads/dnd/NetFlow_Analyzer/o_19ga51p951gblpbs1rkrm211vim1/vulnerabilities_Fix.zip

Open DeviceExper.zip

1. Stop the Device Expert service.
2. Please replace AdvNCM.jar under DeviceExpert_Home/lib with the one under DeviceExpert.zip/AdvNCM.jar
3. Start the Device Expert service

Change Log

Disclosure 

11-February-2015 Reported to Developer
13-February-2015 Acknodlagement from Developer
13-March-2015    Fixed by developer
16-March-2015    Requested a cve ID  

credits

 Kaustubh Padwad
 Information Security Researcher
 kingkaustubh@me.com
 https://twitter.com/s3curityb3ast
 http://breakthesec.com
 https://www.linkedin.com/in/kaustubhpadwad