Check Point Advisories

Nodebb Directory Traversal (CVE-2021-43788)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-2114
Date Published:	28 Feb 2024
Severity:	Medium
Last Updated:	Wednesday 28 February, 2024
Source:
Industry Reference:	CVE-2021-43788
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	NodeBB 1.0.4 and later, 1.18.4 and prior
Vulnerability Description	A directory traversal vulnerability exists in Nodebb. Successful exploitation of this vulnerability would allow a remote attacker to list directories 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 Nodebb Directory Traversal (CVE-2021-43788) 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: Nodebb Directory Traversal (CVE-2021-43788)