Check Point Advisories

JumpServer Authentication Bypass (CVE-2023-42442)

Vulnerability
Protection

Check Point Reference:	CPAI-2023-1430
Date Published:	7 Jan 2024
Severity:	Medium
Last Updated:	Sunday 07 January, 2024
Source:
Industry Reference:	CVE-2023-42442
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	FIT2CLOUD JumpServer 3.0.0 and later, prior to 3.5.5 FIT2CLOUD JumpServer 3.6.0 and later, prior to 3.6.4
Vulnerability Description	An authentication bypass vulnerability exists in JumpServer. 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 JumpServer Authentication Bypass (CVE-2023-42442) 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: JumpServer Authentication Bypass (CVE-2023-42442)