Check Point Advisories

Fortinet FortiOS Heap-Based Buffer Overflow (CVE-2022-42475)

Vulnerability
Protection

Check Point Reference:	CPAI-2022-1418
Date Published:	30 Mar 2023
Severity:	Critical
Last Updated:	Thursday 30 March, 2023
Source:
Industry Reference:	CVE-2022-42475
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Fortinet FortiOS from 5.0.0 (including) up to 5.0.14 (including) Fortinet FortiOS from 5.2.0 (including) up to 5.2.15 (including) Fortinet FortiOS from 5.4.0 (including) up to 5.4.13 (including) Fortinet FortiOS from 5.6.0 (including) up to 5.6.14 (including) Fortinet FortiOS from 6.0.0 (including) up to 6.0.15 (including) Fortinet FortiOS from 6.2.0 (including) up to 6.2.11 (including) Fortinet FortiOS from 6.4.0 (including) up to 6.4.10 (including) Fortinet FortiOS from 7.0.0 (including) up to 7.0.8 (including) Fortinet FortiOS from 7.2.0 (including) up to 7.2.2 (including)
Vulnerability Description	A heap-based buffer overflow vulnerability exists in Fortinet FortiOS. Successful exploitation could result in the execution of arbitrary code or a denial of service condition on the target server.

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 R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Fortinet FortiOS Heap-Based Buffer Overflow (CVE-2022-42475) protection using the Search tool and Edit the protection's settings.
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 Heap-Based Buffer Overflow (CVE-2022-42475)