CVE-2021-20411 Explained : Impact and Mitigation

IBM Security Verify Information Queue versions 1.0.6 and 1.0.7 are affected by a vulnerability that could allow a user to impersonate another user on the system due to incorrectly updating the session identifier. Read on to understand the impact, technical details, and mitigation steps for CVE-2021-20411.

Understanding CVE-2021-20411

This section provides insights into the vulnerability identified as CVE-2021-20411 within IBM Security Verify Information Queue versions 1.0.6 and 1.0.7.

What is CVE-2021-20411?

CVE-2021-20411 refers to the vulnerability in IBM Security Verify Information Queue that allows a user to impersonate another user on the system by incorrectly updating the session identifier. This security flaw is assigned the IBM X-Force ID: 198191.

The Impact of CVE-2021-20411

The impact of this vulnerability is rated as HIGH severity with a CVSS base score of 7.5. It could result in unauthorized users gaining elevated privileges and compromising the confidentiality and integrity of the system. The attack complexity is classified as HIGH, requiring user interaction for exploitation.

Technical Details of CVE-2021-20411

Explore the technical aspects of CVE-2021-20411 to better understand its implications and areas of exploitation.

Vulnerability Description

The vulnerability in IBM Security Verify Information Queue arises from incorrectly updating the session identifier, enabling an attacker to impersonate other users on the system and potentially gain unauthorized privileges.

Affected Systems and Versions

IBM Security Verify Information Queue versions 1.0.6 and 1.0.7 are impacted by this vulnerability, leaving systems with these versions exposed to the risk of user impersonation and privilege escalation.

Exploitation Mechanism

To exploit CVE-2021-20411, an attacker in an adjacent network environment would require user interaction. The exploit code maturity is considered unproven at the time of discovery, indicating the potential for threat actors to develop effective attack methods.

Mitigation and Prevention

Discover the immediate steps and long-term security practices recommended to mitigate the risks associated with CVE-2021-20411.

Immediate Steps to Take

Organizations using IBM Security Verify Information Queue 1.0.6 and 1.0.7 should apply the official fix provided by IBM to address the vulnerability promptly.

Long-Term Security Practices

Implement robust user authentication mechanisms, session management controls, and regular security audits to prevent future instances of session fixation and user impersonation.

Patching and Updates

Stay informed about security bulletins and updates from IBM regarding IBM Security Verify Information Queue to ensure timely application of patches and enhancements.