Check Point Advisories

Schneider Electric Modicon Multiple Authentication Bypass Vulnerabilities (CVE-2018-7809; CVE-2018-7810; CVE-2018-7811)

Check Point Reference: CPAI-2019-0854
Date Published: 24 Jul 2019
Severity: Critical
Last Updated: 24 Jul 2019
Source:
Industry Reference:CVE-2018-7809
CVE-2018-7810
CVE-2018-7811
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? Schneider Electric Modicon M340 Quantum PLC
Schneider Electric Modicon M340 Premium
Schneider Electric Modicon M340 BMXNOR0200
Vulnerability Description Multiple authentication bypass vulnerabilities exist in Schneider Electric Modicon. A remote, unauthenticated attacker can exploit this vulnerability by sending a crafted HTTP request to the affected page. Successful exploitation results in the attacker being able to change the password for arbitrary accounts.

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 R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Schneider Electric Modicon Multiple Authentication Bypass Vulnerabilities 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:  SCADA Protection Violation.
Attack Information:  Schneider Electric Modicon Multiple Authentication Bypass Vulnerabilities

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