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Check Point Advisories

TOTOLINK Technology Router Authentication Bypass (CVE-2021-35327)

Check Point Reference: CPAI-2021-0851
Date Published: 14 Nov 2021
Severity: Critical
Last Updated: 14 Nov 2021
Industry Reference:CVE-2021-35327
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911
Vulnerability Description An authentication bypass vulnerability exists in TOTOLINK Technology Router. Successful exploitation of this vulnerability would allow remote attackers to gain unauthorized access 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 R80 / R77 / R75

  1. In the IPS tab, click Protections and find the TOTOLINK Technology Router Authentication Bypass (CVE-2021-35327) 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:  TOTOLINK Technology Router Authentication Bypass (CVE-2021-35327)

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