CVE-2021-22117 : Vulnerability Insights and Analysis

RabbitMQ installers on Windows prior to version 3.8.16 have a vulnerability that allows attackers with sufficient local filesystem permissions to add arbitrary plugins.

Understanding CVE-2021-22117

This CVE identifies a security issue in RabbitMQ Windows installers before version 3.8.16, enabling unauthorized access to plugin directory permissions.

What is CVE-2021-22117?

The vulnerability in RabbitMQ allows attackers with local filesystem permissions to insert unauthorized plugins due to inadequate hardening of plugin directory permissions.

The Impact of CVE-2021-22117

This vulnerability can be exploited by threat actors to introduce malicious plugins into the RabbitMQ system, potentially leading to unauthorized access or other security breaches.

Technical Details of CVE-2021-22117

This section provides specific technical details regarding the affected systems and exploitation mechanism.

Vulnerability Description

RabbitMQ Windows installers prior to version 3.8.16 do not adequately secure plugin directory permissions, facilitating potential plugin manipulation by attackers with local filesystem permissions.

Affected Systems and Versions

The affected product is RabbitMQ on Windows, specifically versions preceding 3.8.16.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging their local filesystem permissions to insert malicious plugins into RabbitMQ installations.

Mitigation and Prevention

To address CVE-2021-22117, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Organizations should restrict local filesystem permissions, monitor plugin directories, and implement security updates promptly to mitigate the risk of unauthorized plugin insertion.

Long-Term Security Practices

Establishing strict access controls, conducting regular security audits, and educating users on plugin installation best practices can enhance the overall security posture against similar vulnerabilities.

Patching and Updates

Users are advised to upgrade RabbitMQ installations to version 3.8.16 or later, where the plugin directory permissions are properly hardened to prevent unauthorized access.