CVE-2023-41712 : Vulnerability Insights and Analysis

A SonicOS post-authentication Stack-Based Buffer Overflow Vulnerability in the SSL VPN plainprefs.exp URL endpoint leading to a firewall crash has been identified and published as CVE-2023-41712.

Understanding CVE-2023-41712

This section will cover the essential information related to the CVE-2023-41712 vulnerability.

What is CVE-2023-41712?

The CVE-2023-41712 refers to a post-authentication Stack-Based Buffer Overflow Vulnerability in SonicOS affecting SSL VPN plainprefs.exp URL endpoint, resulting in a firewall crash.

The Impact of CVE-2023-41712

The vulnerability can be exploited by attackers to crash the firewall post-authentication through the SSL VPN plainprefs.exp URL endpoint.

Technical Details of CVE-2023-41712

Here are the technical details explaining the vulnerability further.

Vulnerability Description

SonicOS is affected by a Stack-Based Buffer Overflow issue in SSL VPN that allows unauthorized users to crash the firewall.

Affected Systems and Versions

Affected systems include SonicOS versions 7.0.1-5119, 7.0.1-5129, 6.5.4.4-44v-21-2079, and 6.5.4.12-101n, and earlier versions.

Exploitation Mechanism

Attackers can leverage this vulnerability by sending malicious requests to the plainprefs.exp URL endpoint of the SSL VPN interface, leading to a firewall crash.

Mitigation and Prevention

Learn how to address and prevent the CVE-2023-41712 vulnerability.

Immediate Steps to Take

Immediately update SonicOS to the latest version and restrict network access to the SSL VPN interface to trusted entities.

Long-Term Security Practices

Regularly monitor security advisories from SonicWall and implement security best practices to prevent similar vulnerabilities.

Patching and Updates

Apply patches and updates provided by SonicWall promptly to mitigate the risk of exploitation.