Check Point Advisories

Eyoucms Server Side Request Forgery (CVE-2021-39497)

Check Point Reference: CPAI-2021-0712
Date Published: 4 Oct 2021
Severity: High
Last Updated: Monday 04 October, 2021
Source:
Industry Reference:CVE-2021-39497
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Eyoucms version 1.5.4
Vulnerability Description A sever-side request forgery vulnerability exists in Eyoucms. The vulnerability is due to a lack of validation on the subdomain parameter in HTTP requests. Successful exploitation of this vulnerability could allow an unauthenticated attacker to make a request to any internal and external 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

  1. In the IPS tab, click Protections and find the Eyoucms Server Side Request Forgery (CVE-2021-39497) 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:  Web Server Enforcement Violation.
Attack Information:  Eyoucms Server Side Request Forgery (CVE-2021-39497)

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