Multiple CSRF defects in D-Link DSL-2740B

+ ---------- + # Title: D-Link DSL-2740B (ADSL Router) CSRF Vulnerability # Author: Ivano Binetti ( http://ivanobinetti.com ) # Official Website: http://www.d-link.com# Affected Version: DSL-2740B # Test Platform: Firmware Version: EU_1.00 (Other release cocould be affected) Abstract 1) Introduction 2) defect description 3) use 3.1 Disable/Enable Wireless MAc Address Filter 3.2 Disable/Enable all the Firewall protections (Both "SPI" and "DOS and Portscan Protection ") 3.3 Enable/Disable Remote Management (in my exploit I enabled remote management via http-tcp port 80-and ssh-tcp port 22-) + ------------------------- 1) overview D-Link DSL-2740B is an ADSL Router using, also, a web management interface in order to set and change device parameters. 2) Problem 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 to perform without modifications to the router's parameters. the default ip adress of this adsl router, used formanagement purpose, is 192.168.1.1.In my Advisory I'll describe only how to carry out the following changes: -Disable/Enable Wireless MAc Address Filter-Disable/Enable all the Firewall protections (Both "SPI" and "DOS and Portscan Protection ") -Enable/Disable Remote Management (in my exploit I enabled remote management via http-tcp port 80-and ssh-tcp port 22 -). specified other changes can be saved med. 3) test 3.1 Disable/Enable Wireless MAc Address Filter