Check Point Advisories

HTML Entity Encoding Multiple Vulnerabilities

Vulnerability
Protection

Check Point Reference:	CPAI-2024-0704
Date Published:	16 Sep 2024
Severity:	High
Last Updated:	Tuesday 15 October, 2024
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	HTML Entity Encoding is a technique used to encode special characters to safely display in web pages. An attacker can exploit the improper handling of this encoding by sending a specially crafted input to the victim. Successful exploitation would allow an attacker to execute arbitrary code on the target machine, or to obtain sensitive information.

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 HTML Entity Encoding Multiple Vulnerabilities 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 Server Enforcement Violation.
Attack Information: HTML Entity Encoding Multiple Vulnerabilities