CVE-2020-15314 : Exploit Details and Defense Strategies

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded RSA SSH key for the root account.

Understanding CVE-2020-15314

This CVE involves a vulnerability in Zyxel CloudCNM SecuManager versions 3.1.0 and 3.1.1 where a hardcoded RSA SSH key is present for the root account.

What is CVE-2020-15314?

The CVE-2020-15314 vulnerability pertains to the presence of a hardcoded RSA SSH key for the root account in Zyxel CloudCNM SecuManager versions 3.1.0 and 3.1.1.

The Impact of CVE-2020-15314

The hardcoded RSA SSH key in Zyxel CloudCNM SecuManager can potentially lead to unauthorized access and compromise of the root account, posing a significant security risk.

Technical Details of CVE-2020-15314

Vulnerability Description

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 contain a hardcoded RSA SSH key for the root account.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Versions: 3.1.0 and 3.1.1

Exploitation Mechanism

Attackers could exploit this vulnerability to gain unauthorized access to the root account through the hardcoded RSA SSH key.

Mitigation and Prevention

Immediate Steps to Take

Disable SSH access to the affected Zyxel CloudCNM SecuManager devices.
Change the default SSH keys and passwords to prevent unauthorized access.

Long-Term Security Practices

Regularly update and patch Zyxel CloudCNM SecuManager to address security vulnerabilities.
Implement strong password policies and multi-factor authentication to enhance security.
Conduct security audits and assessments to identify and mitigate potential risks.

Patching and Updates

Check for security advisories and updates from Zyxel to apply patches that address the hardcoded RSA SSH key vulnerability.