Check Point Advisories

TP-Link TL-WR840N/TL-WR841N Authentication Bypass

Vulnerability
Protection

Check Point Reference:	CPAI-2018-0494
Date Published:	29 May 2018
Severity:	Critical
Last Updated:	Tuesday 29 May, 2018
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	TP-Link TL-WR840N TP-Link TL-WR841N
Vulnerability Description	An authentication bypass vulnerability exists in TP-Link WR840N and TL-WR841N routers. Successful exploitation of this vulnerability would allow remote attackers to obtain sensitive information and gain unauthorized access into the affected system.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the TP-Link TL-WR840N/TL-WR841N Authentication Bypass protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Application Servers Protection Violation.
Attack Information: TP-Link TL-WR840N/TL-WR841N Authentication Bypass