Check Point Advisories

Ivanti Avalanche Stack Buffer Overflow (CVE-2023-41727; CVE-2023-46216; CVE-2023-46217)

Vulnerability
Protection

Check Point Reference:	CPAI-2023-1508
Date Published:	4 Feb 2024
Severity:	Critical
Last Updated:	Sunday 04 February, 2024
Source:
Industry Reference:	CVE-2023-41727 CVE-2023-46216 CVE-2023-46217
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Ivanti Avalanche prior to 6.4.2
Vulnerability Description	A stack buffer overflow vulnerability exists in Ivanti Avalanche. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on 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 R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Ivanti Avalanche Stack Buffer Overflow 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: Ivanti Avalanche Stack Buffer Overflow