CVE-2022-23746 Explained : Impact and Mitigation

A security vulnerability has been identified in the IPsec VPN blade with a dedicated portal for SSL Network Extender (SNX) on certain versions of Check Point products.

Understanding CVE-2022-23746

This CVE pertains to a vulnerability in the username/password authentication configuration of the IPsec VPN blade's SNX portal, leaving it susceptible to brute-force attacks.

What is CVE-2022-23746?

The IPsec VPN blade's SNX portal, when configured for username/password authentication, can be targeted by attackers using brute-force techniques to gain unauthorized access.

The Impact of CVE-2022-23746

Exploitation of this vulnerability could lead to unauthorized access to the VPN gateway and potential exposure of sensitive data transmitted over the network.

Technical Details of CVE-2022-23746

This section provides more insight into the vulnerability, the affected systems, and how it can be exploited.

Vulnerability Description

The vulnerability lies in the flawed configuration of the username/password authentication mechanism in the IPsec VPN blade's SNX portal, enabling brute-force attacks.

Affected Systems and Versions

Vendor: Check Point
Affected Products: Gateway & Management, IPsec VPN blade SNX portal
Vulnerable Versions: R81.10 before take 79, R81 before take 77, R80.40 before take 180, R80.30 before take 255, R80.20 before take 230

Exploitation Mechanism

Attackers can exploit this vulnerability by repeatedly attempting different combinations of usernames and passwords until they successfully gain access to the system.

Mitigation and Prevention

Protecting systems from CVE-2022-23746 involves immediate actions and long-term security measures.

Immediate Steps to Take

Check Point recommends updating the affected products to the fixed versions provided by the vendor.
Implement additional security measures such as multi-factor authentication to mitigate the risk of brute-force attacks.

Long-Term Security Practices

Regularly review and update authentication mechanisms to ensure they align with best security practices.

Patching and Updates

Apply security patches and updates released by Check Point promptly to address the vulnerability and enhance the security of the IPsec VPN blade's SNX portal.