CVE-2021-26684 : Exploit Details and Defense Strategies

A remote authenticated command injection vulnerability was discovered in Aruba ClearPass Policy Manager versions prior to 6.9.5, 6.8.8-HF1, and 6.7.14-HF1. This vulnerability allows remote authenticated users to run arbitrary commands on the underlying host, potentially leading to a complete system compromise.

Understanding CVE-2021-26684

This section provides insights into the nature and impact of CVE-2021-26684.

What is CVE-2021-26684?

CVE-2021-26684 is a remote authenticated command injection vulnerability affecting Aruba ClearPass Policy Manager, allowing attackers to execute arbitrary commands as root on the underlying operating system.

The Impact of CVE-2021-26684

The exploitation of this vulnerability could result in an attacker gaining full control over the affected system, thereby posing a significant risk to data confidentiality and system integrity.

Technical Details of CVE-2021-26684

In this section, we delve into the technical aspects of CVE-2021-26684.

Vulnerability Description

The vulnerability lies in the ClearPass web-based management interface, enabling authenticated users to inject and execute arbitrary commands remotely.

Affected Systems and Versions

Aruba ClearPass Policy Manager versions prior to 6.9.5, 6.8.8-HF1, and 6.7.14-HF1 are impacted by this vulnerability.

Exploitation Mechanism

Attackers with remote authenticated access can exploit this weakness to execute malicious commands with elevated privileges, potentially leading to a complete system compromise.

Mitigation and Prevention

This section outlines the steps organizations can take to mitigate the risks associated with CVE-2021-26684.

Immediate Steps to Take

Organizations are advised to update the affected Aruba ClearPass Policy Manager to versions 6.9.5, 6.8.8-HF1, or 6.7.14-HF1 as soon as possible to eliminate the vulnerability.

Long-Term Security Practices

Implementing strict access controls, network segmentation, and regular security audits can help prevent unauthorized access and detect any suspicious activities timely.

Patching and Updates

Regularly applying security patches and updates provided by the vendor is crucial to address known vulnerabilities and strengthen the overall security posture.