Check Point Advisories

PTCL Modem HG150-Ub Authentication Bypass (CVE-2021-35296)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-0865
Date Published:	17 Nov 2021
Severity:	Critical
Last Updated:	Wednesday 17 November, 2021
Source:
Industry Reference:	CVE-2021-35296
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	PTCL HG150-Ub v3.0
Vulnerability Description	A vulnerability exists in PTCL HG150-Ub. Successful exploitation of this vulnerability could allow a remote attacker to damage users 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

In the IPS tab, click Protections and find the PTCL Modem HG150-Ub Authentication Bypass (CVE-2021-35296) 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: Web Client Enforcement Violation.
Attack Information: PTCL Modem HG150-Ub Authentication Bypass (CVE-2021-35296)