CVE-2020-4253 : Security Advisory and Response

IBM Content Navigator 3.0CD allows session fixation, enabling an authenticated user to impersonate others. This medium-severity vulnerability has a CVSS base score of 6.3.

Understanding CVE-2020-4253

IBM Content Navigator 3.0CD vulnerability with session fixation.

What is CVE-2020-4253?

IBM Content Navigator 3.0CD fails to invalidate sessions post-logout, potentially leading to unauthorized user impersonation.

The Impact of CVE-2020-4253

Attack Complexity: Low
Attack Vector: Network
Base Score: 6.3 (Medium)
Exploit Code Maturity: Unproven
Privileges Required: Low
User Interaction: None

Technical Details of CVE-2020-4253

Vulnerability specifics and affected systems.

Vulnerability Description

The flaw in IBM Content Navigator 3.0CD allows authenticated users to impersonate others due to session fixation.

Affected Systems and Versions

Product: Content Navigator
Vendor: IBM
Version: 3.0CD

Exploitation Mechanism

The vulnerability can be exploited by an authenticated user to manipulate sessions and impersonate other users.

Mitigation and Prevention

Steps to address and prevent the vulnerability.

Immediate Steps to Take

Apply the official fix provided by IBM.
Monitor user sessions for any suspicious activity.
Educate users on secure session management practices.

Long-Term Security Practices

Regularly update and patch the Content Navigator software.
Conduct security audits to identify and address similar vulnerabilities.
Implement multi-factor authentication for enhanced security.

Patching and Updates

Ensure all systems running IBM Content Navigator 3.0CD are updated with the official fix from IBM.