CVE-2018-7066 Explained : Impact and Mitigation

Aruba ClearPass Policy Manager has a vulnerability that allows unauthorized remote command execution on linked devices.

Understanding CVE-2018-7066

What is CVE-2018-7066?

An unauthenticated remote command execution vulnerability in Aruba ClearPass Policy Manager enables attackers to execute commands on connected devices.

The Impact of CVE-2018-7066

This vulnerability allows remote attackers to execute arbitrary commands on linked devices, compromising network security.

Technical Details of CVE-2018-7066

Vulnerability Description

The ClearPass OnConnect feature in Aruba ClearPass Policy Manager permits remote command execution on connected devices.

Affected Systems and Versions

Product: Aruba ClearPass Policy Manager
Vendor: Hewlett Packard Enterprise
Versions Affected: ClearPass 6.7.x prior to 6.7.5, ClearPass 6.6.10 and earlier without hotfix applied

Exploitation Mechanism

The flaw in the API of ClearPass allows remote attackers to execute commands on linked devices if credentials are provided under Configuration -> Network -> Devices -> CLI Settings.

Mitigation and Prevention

Immediate Steps to Take

Update to versions 6.7.5 or 6.6.10-hotfix to patch the vulnerability.
Review and restrict access to device credentials stored in ClearPass.

Long-Term Security Practices

Regularly monitor and audit network device connections to detect unauthorized access.
Implement strong password policies and multi-factor authentication.

Patching and Updates

Apply security patches promptly to ensure protection against known vulnerabilities.