Staying Safe in Times of Cyber Uncertainty
Check Point Advisories

SonicWall SMA 100 Command Injection (CVE-2021-20039)

Check Point Reference: CPAI-2021-1187
Date Published: 9 Jun 2022
Severity: High
Last Updated: Thursday 09 June, 2022
Source:
Industry Reference:CVE-2021-20039
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? SonicWall SMA 100
SonicWall SMA 200
SonicWall SMA 210
SonicWall SMA 400
SonicWall SMA 410
SonicWall SMA 500v
Vulnerability Description A command injection vulnerability exists in SonicWall SMA 100. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary commands 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 R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the SonicWall SMA 100 Command Injection (CVE-2021-20039) 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 100 Command Injection (CVE-2021-20039)

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