Check Point Advisories

D-Link DSL-320B-D1 Buffer Overflow (CVE-2021-26709)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-1546
Date Published:	11 Jan 2023
Severity:	Critical
Last Updated:	Wednesday 11 January, 2023
Source:
Industry Reference:	CVE-2021-26709
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	D-Link DSL-320B-D1 up to eu_1.25
Vulnerability Description	A buffer overflow vulnerability exists in D-Link DSL-320B-D1. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system or cause application crashes.

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 DSL-320B-D1 Buffer Overflow (CVE-2021-26709) 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 DSL-320B-D1 Buffer Overflow (CVE-2021-26709)