Check Point Advisories

SonicWall Sma 200 Firmware Buffer Overflow (CVE-2021-20043)

Check Point Reference: CPAI-2021-2129
Date Published: 25 Nov 2024
Severity: High
Last Updated: Monday 25 November, 2024
Source:
Industry Reference:CVE-2021-20043
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? SonicWall Sma 200 Firmware 10.2.0.8-37sv
SonicWall Sma 200 Firmware 10.2.1.1-19sv
Vulnerability Description A buffer overflow vulnerability exists in SonicWall Sma 200 Firmware. 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

  1. In the IPS tab, click Protections and find the SonicWall Sma 200 Firmware Buffer Overflow (CVE-2021-20043) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  SonicWall Sma 200 Firmware Buffer Overflow (CVE-2021-20043)

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