CVE-2023-37935 : What You Need to Know

A detailed overview of CVE-2023-37935 highlighting the vulnerability, impact, technical details, and mitigation steps.

Understanding CVE-2023-37935

In-depth analysis of the vulnerability found in Fortinet FortiOS versions 7.0.0 - 7.0.12, 7.2.0 - 7.2.5, and 7.4.0 allowing attackers to view plaintext passwords of remote services.

What is CVE-2023-37935?

The CVE-2023-37935 vulnerability involves a use of GET request method with sensitive query strings in Fortinet FortiOS, potentially exposing plaintext passwords of services like RDP or VNC to attackers monitoring GET requests.

The Impact of CVE-2023-37935

The vulnerability poses a high risk of information disclosure, with attackers being able to access sensitive data like plaintext passwords, compromising the security and confidentiality of remote services.

Technical Details of CVE-2023-37935

Insight into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability arises from the improper handling of GET requests containing sensitive query strings, allowing unauthorized access to plaintext passwords of remote services.

Affected Systems and Versions

Fortinet FortiOS versions 7.0.0 - 7.0.12, 7.2.0 - 7.2.5, and 7.4.0 are confirmed to be impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by monitoring GET requests to targeted services to retrieve plaintext passwords, compromising the confidentiality of the system.

Mitigation and Prevention

Guidance on immediate steps to take, long-term security practices, and the importance of patching and updates.

Immediate Steps to Take

Users are advised to upgrade to FortiOS version 7.4.1 or above, 7.2.6 or above, and 7.0.13 or above to patch the vulnerability and prevent unauthorized access to plaintext passwords.

Long-Term Security Practices

Implementing secure coding practices, regular security audits, and employee training on identifying and mitigating security risks can enhance the overall security posture.

Patching and Updates

Regularly check for security advisories from Fortinet and promptly apply patches and updates to ensure systems are protected against known vulnerabilities.