Check Point Advisories

Suspicious Evasion In HTTP Headers

Vulnerability
Protection

Check Point Reference:	CPAI-2019-0198
Date Published:	13 Feb 2019
Severity:	Critical
Last Updated:	Sunday 07 August, 2022
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Certain evasion tools can use evasion techniques in order to circumvent inspection by security software. A remote attacker could use evasion methods in order to execute arbitrary code on the target system.

Protection Overview

This protection will detect and block 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 Suspicious Evasion In HTTP Headers 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: Suspicious Evasion In HTTP Headers