Check Point Advisories

XStream Insecure Deserialization

Vulnerability
Protection

Check Point Reference:	CPAI-2024-0116
Date Published:	1 Apr 2024
Severity:	Critical
Last Updated:	Monday 01 April, 2024
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	XStream
Vulnerability Description	An insecure deserialization vulnerability exists in XStream. Successful exploitation could result in remote code execution on the server.

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 XStream Insecure Deserialization 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: XStream Insecure Deserialization