Check Point Advisories

TP-Link TL-WR Buffer Overflow Remote Code Execution (CVE-2019-6989)

Vulnerability
Protection

Check Point Reference:	CPAI-2019-0555
Date Published:	7 May 2019
Severity:	High
Last Updated:	Thursday 22 August, 2019
Source:
Industry Reference:	CVE-2019-6989
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	TP-LINK TL-WR940N and TL-WR941ND
Vulnerability Description	An arbitrary code execution vulnerability exists in TP-LINK TL-WR940N and TL-WR941ND. A remote attacker can exploit this vulnerability by sending a maliciously crafted packet to the target server. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on 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-WR Buffer Overflow Remote Code Execution (CVE-2019-6989) 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: Web Server Enforcement Violation.
Attack Information: TP-Link TL-WR Buffer Overflow Remote Code Execution (CVE-2019-6989)