Check Point Advisories

Nextcloud Desktop Client Path Traversal (CVE-2020-8227)

Vulnerability
Protection

Check Point Reference:	CPAI-2020-3777
Date Published:	12 Mar 2023
Severity:	Medium
Last Updated:	Sunday 12 March, 2023
Source:
Industry Reference:	CVE-2020-8227
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Nextcloud Desktop Client version 2.6.4 for Linux
Vulnerability Description	A path traversal vulnerability exists in Nextcloud Desktop Client. Successful exploitation of this vulnerability could allow a remote attacker to disclose or access arbitrary files on the vulnerable 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 Nextcloud Desktop Client Path Traversal (CVE-2020-8227) 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: Nextcloud Desktop Client Path Traversal (CVE-2020-8227)