CVE-2020-15340 : What You Need to Know

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded SSH key, posing a security risk.

Understanding CVE-2020-15340

This CVE identifies a vulnerability in Zyxel CloudCNM SecuManager versions 3.1.0 and 3.1.1.

What is CVE-2020-15340?

The vulnerability involves a hardcoded SSH key within the application, potentially allowing unauthorized access to sensitive information.

The Impact of CVE-2020-15340

The presence of the hardcoded SSH key in Zyxel CloudCNM SecuManager versions 3.1.0 and 3.1.1 could lead to unauthorized access to the system, compromising data security.

Technical Details of CVE-2020-15340

This section provides more technical insights into the vulnerability.

Vulnerability Description

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 contain a hardcoded SSH key located at opt/axess/AXAssets/default_axess/axess/TR69/Handlers/turbolink/sshkeys/id_rsa, which poses a significant security risk.

Affected Systems and Versions

Product: Zyxel CloudCNM SecuManager
Versions: 3.1.0 and 3.1.1

Exploitation Mechanism

The hardcoded SSH key could be exploited by malicious actors to gain unauthorized access to the affected systems.

Mitigation and Prevention

Protecting systems from CVE-2020-15340 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable remote access if not required
Monitor for any unauthorized access attempts
Implement network segmentation to limit the impact of a potential breach

Long-Term Security Practices

Regularly update and patch the Zyxel CloudCNM SecuManager software
Conduct security audits to identify and address vulnerabilities
Educate users on secure SSH key management practices
Implement multi-factor authentication for enhanced security

Patching and Updates

Ensure that Zyxel CloudCNM SecuManager is updated to a secure version that addresses the hardcoded SSH key vulnerability.