Check Point Advisories

D-Link DIR809 Buffer Overflow (CVE-2021-33266; CVE-2021-33267; CVE-2021-33268; CVE-2021-33269; CVE-2021-33270; CVE-2021-33271; CVE-2021-33274)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-1070
Date Published:	10 Mar 2022
Severity:	Critical
Last Updated:	Thursday 10 March, 2022
Source:
Industry Reference:	CVE-2021-33266 CVE-2021-33267 CVE-2021-33268 CVE-2021-33269 CVE-2021-33270 CVE-2021-33271 CVE-2021-33274
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	D-Link DIR-809Ax_FW1.12WWB03_20190410
Vulnerability Description	A buffer overflow vulnerability exists in D-Link DIR809. 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 D-Link DIR809 Buffer Overflow (CVE-2021-33266) 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: D-Link DIR809 Buffer Overflow (CVE-2021-33266)