Check Point Advisories

Fortinet Multiple Products Heap-Based Buffer Overflow (CVE-2023-27997)

Vulnerability
Protection

Check Point Reference:	CPAI-2023-0422
Date Published:	13 Jun 2023
Severity:	Critical
Last Updated:	Thursday 26 October, 2023
Source:
Industry Reference:	CVE-2023-27997
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	FortiOS version 7.2.4 and below FortiOS version 7.0.11 and below FortiOS version 6.4.12 and below FortiOS version 6.0.16 and below FortiProxy version 7.2.3 and below FortiProxy version 7.0.9 and below FortiProxy version 2.0.12 and below FortiProxy version 1.2 all versions, version 1.1 all versions
Vulnerability Description	A heap-based buffer overflow vulnerability exists in multiple Fortinet products. 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 Multiple Products Heap-Based Buffer Overflow (CVE-2023-27997) 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 Multiple Products Heap-Based Buffer Overflow (CVE-2023-27997)