Check Point Advisories

XML External Entity Over HTTP Request (CVE-2020-11991; CVE-2020-24589; CVE-2021-23792; CVE-2021-26703; CVE-2021-37425; CVE-2021-43142; CVE-2022-24449; CVE-2022-38389; CVE-2022-39135; CVE-2022-43941; CVE-2022-47514; CVE-2023-23595; CVE-2023-46265; CVE-2024-34102)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-0211
Date Published:	11 Apr 2021
Severity:	Critical
Last Updated:	Wednesday 30 October, 2024
Source:
Industry Reference:	CVE-2020-11991 CVE-2020-24589 CVE-2021-23792 CVE-2021-26703 CVE-2021-37425 CVE-2021-43142 CVE-2022-24449 CVE-2022-38389 CVE-2022-39135 CVE-2022-43941 CVE-2022-47514 CVE-2023-23595 CVE-2023-46265 CVE-2024-34102
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	An XML external entity (XXE) vulnerability exists in multiple products. The vulnerability is due to incorrectly configured XML parsing which accepts XML external entities from untrusted sources. A remote, unauthenticated attacker can leverage this vulnerability by sending a malicious request to the target 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 XML External Entity Over HTTP Request 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: XML External Entity Over HTTP Request