CVE-2020-15313 : Security Advisory and Response

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

Understanding CVE-2020-15313

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

What is CVE-2020-15313?

The vulnerability in Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 allows for a hardcoded ECDSA SSH key for the root account, posing a security risk.

The Impact of CVE-2020-15313

This vulnerability could potentially allow unauthorized access to the root account, leading to unauthorized actions and compromising the security of the system.

Technical Details of CVE-2020-15313

This section provides more technical insights into the CVE.

Vulnerability Description

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 contain a hardcoded ECDSA SSH key for the root account, which can be exploited by attackers.

Affected Systems and Versions

Product: Zyxel CloudCNM SecuManager
Versions: 3.1.0 and 3.1.1

Exploitation Mechanism

Attackers can exploit this vulnerability by using the hardcoded ECDSA SSH key to gain unauthorized access to the root account.

Mitigation and Prevention

Protecting systems from CVE-2020-15313 is crucial to maintaining security.

Immediate Steps to Take

Disable SSH access to the affected Zyxel CloudCNM SecuManager versions.
Monitor for any unauthorized access attempts.

Long-Term Security Practices

Regularly update and patch the Zyxel CloudCNM SecuManager software.
Implement strong password policies and multi-factor authentication.

Patching and Updates

Apply patches or updates provided by Zyxel to address the hardcoded ECDSA SSH key vulnerability.