CVE-2022-30307 : Vulnerability Insights and Analysis
Learn about CVE-2022-30307, a key management error vulnerability in FortiOS 7.2.0 and below, enabling attackers to conduct man-in-the-middle attacks. Understand the impact, technical details, and mitigation steps.
A key management error vulnerability affecting the RSA SSH host key in FortiOS 7.2.0 and below, 7.0.6 and below, 6.4.9 and below may allow an unauthenticated attacker to perform a man-in-the-middle attack.
Understanding CVE-2022-30307
This section provides detailed insights into CVE-2022-30307.
What is CVE-2022-30307?
CVE-2022-30307 is a key management error vulnerability affecting the RSA SSH host key in FortiOS versions 7.2.0 and below, 7.0.6 and below, 6.4.9 and below, potentially enabling unauthenticated attackers to execute man-in-the-middle attacks.
The Impact of CVE-2022-30307
The vulnerability poses a low severity threat with a CVSS base score of 3.9, allowing attackers to intercept and modify traffic between a user and an SSH server, leading to potential unauthorized access and data manipulation.
Technical Details of CVE-2022-30307
In this section, we delve into the technical aspects of CVE-2022-30307.
Vulnerability Description
The vulnerability is classified under the problem type of 'Improper access control,' emphasizing the lack of appropriate safeguards in RSA SSH host key management within affected FortiOS versions.
Affected Systems and Versions
Fortinet's FortiOS versions 7.2.0 and below, 7.0.6 and below, 6.4.9 and below are confirmed to be impacted by this vulnerability.
Exploitation Mechanism
Exploiting this vulnerability requires no prior authentication, allowing threat actors to potentially intercept and manipulate traffic between users and targeted SSH servers.
Mitigation and Prevention
Explore the measures to mitigate and prevent CVE-2022-30307 in the following section.
Immediate Steps to Take
Users are advised to update their FortiOS to versions where the vulnerability has been patched. Implement additional security measures to detect and prevent man-in-the-middle attacks.
Long-Term Security Practices
Enforce strict key management practices, monitor network traffic for anomalies, and deploy intrusion detection systems for enhanced security.
Patching and Updates
Regularly apply security patches and firmware updates provided by Fortinet to address vulnerabilities and strengthen the overall security posture of the system.