Staying Safe in Times of Cyber Uncertainty
Check Point Advisories

CODESYS Web Server Buffer Overflow (CVE-2020-10245)

Check Point Reference: CPAI-2020-0175
Date Published: 30 Mar 2020
Severity: Critical
Last Updated: Thursday 23 April, 2020
Industry Reference:CVE-2020-10245
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? CODESYS V3 Web Server prior to
Vulnerability Description A buffer overflow vulnerability exists in CODESYS web server. Successful exploitation of this vulnerability could result in a denial of service condition.

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 CODESYS Web Server Buffer Overflow (CVE-2020-10245) 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:  CODESYS Web Server Buffer Overflow (CVE-2020-10245)

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