Check Point Advisories

CoDeSys V3 CmpRouter and CmpRouterEmbedded Integer Overflow (CVE-2019-5105)

Check Point Reference: CPAI-2019-2050
Date Published: 19 Apr 2020
Severity: Critical
Last Updated: Sunday 19 April, 2020
Source:
Industry Reference:CVE-2019-5105
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description An integer overflow vulnerability exists in CoDeSys V3 CmpRouter and CmpRouterEmbedded components. The vulnerability is due to improper validation of user-supplied data. A remote, unauthenticated attacker could exploit this vulnerability by sending a crafted message to the target server. Successful exploitation could allow the attacker to execute arbitrary code under the security context of SYSTEM/root.

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 V3 CmpRouter and CmpRouterEmbedded Integer Overflow (CVE-2019-5105) 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 V3 CmpRouter and CmpRouterEmbedded Integer Overflow (CVE-2019-5105)

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