Check Point Advisories

ASUS RT-AX86U Buffer Overflow (CVE-2020-36109)

Vulnerability
Protection

Check Point Reference:	CPAI-2020-3272
Date Published:	23 Feb 2021
Severity:	Critical
Last Updated:	Thursday 20 July, 2023
Source:
Industry Reference:	CVE-2020-36109
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	ASUS RT-AX86U router firmware prior to 9.0.0.4_386
Vulnerability Description	A buffer overflow vulnerability exists in ASUS RT-AX86U. Successful exploitation of this vulnerability could result in a denial of service or execution of arbitrary code 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 R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the ASUS RT-AX86U Buffer Overflow (CVE-2020-36109) 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: ASUS RT-AX86U Buffer Overflow (CVE-2020-36109)