CVE-2021-32756 Explained : Impact and Mitigation

ManageIQ, an open-source management platform, is impacted by a vulnerability in versions prior to jansa-4, kasparov-2, and lasker-1. This flaw in the MiqExpression module allows a low privilege user to execute arbitrary code with root privileges on the host system. Understanding the impact, technical details, and mitigation steps are crucial.

Understanding CVE-2021-32756

ManageIQ vulnerability allows attackers to exploit MiqExpression module to execute arbitrary code with root privileges.

What is CVE-2021-32756?

In ManageIQ versions before jansa-4, kasparov-2, and lasker-1, a flaw in the MiqExpression module permits a low privilege user to input a crafted Ruby string that can be evaluated. Successful exploitation could lead to executing arbitrary code with root privileges on the host system.

The Impact of CVE-2021-32756

The vulnerability poses a high risk with a CVSS v3.1 base score of 8.8, indicating high confidentiality, integrity, and availability impact. The attack only requires low privileges but can result in the execution of arbitrary code with root privileges.

Technical Details of CVE-2021-32756

It is essential to understand the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The flaw in the MiqExpression module of ManageIQ allows attackers to enter a crafted Ruby string, leading to the execution of arbitrary code with root privileges.

Affected Systems and Versions

Versions prior to jansa-4, kasparov-2, and lasker-1 of ManageIQ are impacted by this vulnerability.

Exploitation Mechanism

Attackers with low privileges can exploit the MiqExpression flaw, enabling them to execute arbitrary code with root privileges on the host system.

Mitigation and Prevention

Taking immediate steps to address the CVE, implementing long-term security practices, and applying necessary patches are crucial for safeguarding systems.

Immediate Steps to Take

Apply patches available in releases jansa-4, kasparov-2, and lasker-1 to mitigate the vulnerability. Additionally, restrict users' access via RBAC to minimize the attack surface.

Long-Term Security Practices

Ensure regular security assessments, monitor for unauthorized activities, and educate users on best security practices to prevent future vulnerabilities.

Patching and Updates

Regularly update ManageIQ to the latest secure versions and implement a robust patch management strategy to protect against known vulnerabilities.