Staying Safe in Times of Cyber Uncertainty
Check Point Advisories

Null Byte HTTP Encodings

Check Point Reference: CPAI-2022-0315
Date Published: 13 Jun 2022
Severity: High
Last Updated: Monday 13 June, 2022
Source:
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable?
Vulnerability Description Null Byte HTTP Encodings.

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

  1. In the IPS tab, click Protections and find the Null Byte HTTP Encodings 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:  HTTP Protocol Inspection.
Attack Information:  Null Byte HTTP Encodings

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