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TP-Link Archer CR-700 - Cross-Site Scripting

Author
Ayushman Dutta
Risk
[
Security Risk Medium
]
0day-ID
0day-ID-24908
Category
web applications
Date add
28-09-2016
Platform
multiple
# Exploit Title: TP-Link Archer CR-700 XSS vulnerability
# Google Dork: N/A
# Date: 09/07/2016
# Exploit Author: Ayushman Dutta
# Vendor Homepage: http://www.tp-link.us/
# Software Link: N/A
# Version: 1.0.6 (REQUIRED)
# Tested on: Linux
# CVE : N/A
#Exploit Information:
https://github.com/ayushman4/TP-Link-Archer-CR-700-XSS-Exploit/blob/master/README.md
 
TP-Link-Archer-CR-700-XSS-Exploit
 
Exploiting TP-Link Archer CR-700 Router. (Responsibly Disclosed to TP-Link)
 
Step 1-> On you linux machine (Kali or Ubuntu) type the following command
 
gedit /etc/dhcp/dhclient.conf
 
Comment out the line below
send host-name = gethostname();
 
Copy it to the line below it and change the gethostname() function to an XSS script like below.
 
send host-name = "<script>alert(5)</script>";
 
Step 2:Restart your linux system so that the changes takes into effect.
 
Step 3: Send a DHCP request to the router to receive an IP address with the command below.(Try this on any open network routers which is using TP-Link Archer CR-700)
 
dhclient -v -i wlan0
 
On running the command above, it send a DHCP request to the router. On a DHCP request, the host name is sent to which we have forcibly set it to an XSS script <script>alert(5)</script>
 
Step 4: Login to the administrator console.
 
On logging in the Script executes.
 
One more issue that I saw in the router that was that there was no CSRF token. The cookie set by the router contains a base64 encoded username & password whcih can be stolen using an XSS script.
 
Note:All The above information has been disclosed to TP-Link, who have reporduced the problem and passed it to their R&D team to fix the issue.
 
A URL to the product https://www.amazon.com/Wireless-Certified-Cablevision-Archer-CR700/dp/B012I96J3W

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