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Check Point Advisories

OMRON CX-One CX-FLnet Version and Node Name Heap-based Buffer Overflow (CVE-2018-8834)

Check Point Reference: CPAI-2018-0484
Date Published: 14 May 2018
Severity: Medium
Last Updated: 21 Nov 2019
Source:
Industry Reference:CVE-2018-8834
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? OMRON CX-One versions 4.42 and above
Vulnerability Description A heap-based overflow exists in OMRON CX-One CX-FLnet module. The vulnerability is due to input validation error when processing Version and Node Name parameter of the FLN configuration file. A remote attacker could exploit these vulnerabilities by enticing a target user into opening a maliciously crafted project file, or a web page.

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 OMRON CX-One CX-FLnet Version and Node Name Heap-based Buffer Overflow (CVE-2018-8834) 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 Client Enforcement Violation.
Attack Information:  OMRON CX-One CX-FLnet Version and Node Name Heap-based Buffer Overflow (CVE-2018-8834)

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