Check Point Advisories

Tenda G0 Routers Command Injection (CVE-2021-27691)

Check Point Reference: CPAI-2021-0254
Date Published: 2 May 2021
Severity: Critical
Last Updated: 2 May 2021
Source:
Industry Reference:CVE-2021-27691
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? Tenda G1 firmware 15.11.0.17(9502) CN
Tenda G3 firmware 15.11.0.16(9024) CN
Tenda G3 firmware 15.11.0.17(9502) CN
Tenda G1 firmware 15.11.0.16(9024) CN
Tenda G0 firmware 15.11.0.6(9039) CN
Tenda G0 firmware 15.11.0.5(5876) CN
Vulnerability Description A command injection vulnerability exists in Tenda G0 Routers. 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 R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Tenda G0 Routers Command Injection (CVE-2021-27691) 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:  Application Servers Protection Violation.
Attack Information:  Tenda G0 Routers Command Injection (CVE-2021-27691)

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