CVE-2022-30306 Explained : Impact and Mitigation

This article provides detailed information about the CVE-2022-30306 vulnerability affecting Fortinet's FortiWeb.

Understanding CVE-2022-30306

The CVE-2022-30306 vulnerability is a stack-based buffer overflow vulnerability in the CA sign functionality of FortiWeb.

What is CVE-2022-30306?

The vulnerability in FortiWeb versions 7.0.1 and below, 6.4 all versions, and version 6.3.19 and below could allow an authenticated attacker to execute arbitrary code via a crafted password.

The Impact of CVE-2022-30306

The impact of this vulnerability is rated as medium severity with a CVSS base score of 6.3. It has a high impact on confidentiality, integrity, and availability.

Technical Details of CVE-2022-30306

This section covers the technical details of the CVE-2022-30306 vulnerability.

Vulnerability Description

The vulnerability is a stack-based buffer overflow in the CA sign functionality of affected FortiWeb versions, allowing attackers to execute arbitrary code.

Affected Systems and Versions

FortiWeb versions affected by this vulnerability include 7.0.1 and below, all versions of 6.4, and version 6.3.19 and below.

Exploitation Mechanism

An authenticated attacker could exploit this vulnerability by using a specifically crafted password to achieve arbitrary code execution.

Mitigation and Prevention

In order to mitigate the CVE-2022-30306 vulnerability in FortiWeb, users must take immediate steps and follow long-term security practices.

Immediate Steps to Take

Users are advised to upgrade to FortiWeb version 7.0.2 or above or version 6.3.20 or above to patch the vulnerability.

Long-Term Security Practices

Apart from applying patches, organizations should ensure regular security updates, conduct security training, and implement strong access controls.

Patching and Updates

Regularly check for security updates and apply patches provided by Fortinet to protect against potential threats.