TP-Link WR840N 0.9.1 3.16 - Denial of Service (PoC)

vendor:

TL-WR840N

by:

Aniket Dinda

7.5

CVSS

HIGH

Denial of Service

CWE

Product Name: TL-WR840N

Affected Version From: 0.9.1 3.16

Affected Version To: 0.9.1 3.16

Patch Exists: YES

Related CWE: CVE-2018-15172

CPE: h:tp-link:tl-wr840n

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows 10

2018

TP-Link WR840N 0.9.1 3.16 – Denial of Service (PoC)

An attacker can exploit a vulnerability in TP-Link WR840N 0.9.1 3.16 by connecting to the network, opening BurpSuite and intercepting the connection, and then pasting a string consisting of 2000 zeros. This will cause the router to log out and the network connection to be lost.

Mitigation:

Users should update their TP-Link WR840N 0.9.1 3.16 router to the latest version to mitigate this vulnerability.

Source

Exploit-DB raw data:

# Exploit Title: TP-Link WR840N 0.9.1 3.16 - Denial of Service (PoC)
# Exploit Author:  Aniket Dinda
# Date: 2018-08-05
# Vendor Homepage: https://www.tp-link.com/
# Hardware Link:  https://www.amazon.in/TP-LINK-TL-WR840N-300Mbps-Wireless-External/dp/B01A0G1J7Q
# Version: TP-Link Wireless N Router WR840N
# Firmware version :  0.9.1 3.16 v0001.0 Build 170608 Rel.58696n
# Category: Hardware
# Tested on: Windows 10
# CVE: CVE-2018-15172

# Proof Of Concept:

1- First connect to this network
2- Open BurpSuite and then start the intercept, making the necessary proxy changes to the internet browser.
3- Goto Quick setup > 
4- Now as the Burp is intercept is on, you will find an Authorization: Basic followed by a string. 
5- Now we paste a string consisting of 2000 zeros.
6- Then forward the connection
7- Then your router automatically logout and net connection will be gone.