Cloud Defense Logo

Products

Solutions

Company

CVE-2020-5774 : Exploit Details and Defense Strategies

Learn about CVE-2020-5774 affecting Tenable Nessus versions < 8.11.1. Discover the impact, technical details, and mitigation steps for this Insufficient Session Expiration vulnerability.

Nessus versions 8.11.0 and earlier were found to maintain sessions longer than the permitted period in certain scenarios, potentially allowing attackers with local access to login into an existing browser session.

Understanding CVE-2020-5774

This CVE involves an Insufficient Session Expiration vulnerability in Tenable Nessus.

What is CVE-2020-5774?

CVE-2020-5774 highlights a security issue in Nessus versions 8.11.0 and below, where sessions are not properly expired, enabling unauthorized access.

The Impact of CVE-2020-5774

The vulnerability could lead to unauthorized access by attackers with local access, compromising the security of the affected systems.

Technical Details of CVE-2020-5774

This section provides more technical insights into the vulnerability.

Vulnerability Description

Nessus versions 8.11.0 and earlier fail to terminate sessions within the allowed timeframe, potentially enabling unauthorized access.

Affected Systems and Versions

        Product: Tenable Nessus
        Versions Affected: < 8.11.1

Exploitation Mechanism

Attackers with local access can exploit the lack of session expiration to gain unauthorized entry into existing browser sessions.

Mitigation and Prevention

Protecting systems from CVE-2020-5774 requires immediate actions and long-term security practices.

Immediate Steps to Take

        Upgrade Nessus to version 8.11.1 or above to mitigate the vulnerability.
        Monitor and enforce session expiration policies rigorously.

Long-Term Security Practices

        Regularly update and patch Nessus to address security vulnerabilities promptly.
        Implement strong access controls and monitoring mechanisms to detect unauthorized access attempts.
        Conduct security training to educate users on session security best practices.

Patching and Updates

Ensure timely installation of security patches and updates for Nessus to address known vulnerabilities and enhance system security.

Popular CVEs

CVE Id

Published Date

Is your System Free of Underlying Vulnerabilities?
Find Out Now