Check Point Advisories

Malicious Payloads Over HTTP Headers (CVE-2023-6549)

Vulnerability
Protection

Check Point Reference:	CPAI-2023-1255
Date Published:	30 Nov 2023
Severity:	Critical
Last Updated:	Monday 20 May, 2024
Source:
Industry Reference:	CVE-2023-6549
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	HTTP headers let the client and the server pass additional information with an HTTP request. A remote attacker may use a vulnerable HTTP Header to send malicious payloads to the victim machine.

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 Malicious Payloads Over 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: Malicious Payloads Over HTTP Headers