Check Point Advisories

Fortinet FortiOS SSL VPN Buffer Overflow (CVE-2018-13381)

Check Point Reference: CPAI-2018-1735
Date Published: 18 Feb 2021
Severity: High
Last Updated: 18 Feb 2021
Source:
Industry Reference:CVE-2018-13381
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? Fortinet FortiOS SSL VPN 6.0.0 - 6.0.4
Fortinet FortiOS SSL VPN 5.6.0 - 5.6.7
Fortinet FortiOS SSL VPN 5.4 and prior
Vulnerability Description A buffer overflow vulnerability exists in Fortinet FortiOS. Successful exploitation of this vulnerability could result in a denial of service or execution of arbitrary code into the affected system.

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 Fortinet FortiOS SSL VPN Buffer Overflow (CVE-2018-13381) 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:  Fortinet FortiOS SSL VPN Buffer Overflow (CVE-2018-13381)

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