CVE-2020-15315 : What You Need to Know

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded DSA SSH key for the root account within the /opt/axess chroot directory tree.

Understanding CVE-2020-15315

This CVE involves a hardcoded DSA SSH key in Zyxel CloudCNM SecuManager versions 3.1.0 and 3.1.1.

What is CVE-2020-15315?

This vulnerability allows unauthorized access to the root account due to the presence of a hardcoded DSA SSH key.

The Impact of CVE-2020-15315

Unauthorized users can potentially gain access to the root account, compromising system security.

Technical Details of CVE-2020-15315

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 are affected by a hardcoded DSA SSH key vulnerability.

Vulnerability Description

The hardcoded DSA SSH key for the root account is present within the /opt/axess chroot directory tree.

Affected Systems and Versions

Product: Zyxel CloudCNM SecuManager
Versions: 3.1.0 and 3.1.1

Exploitation Mechanism

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

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Remove or update the hardcoded DSA SSH key.
Monitor for any unauthorized access attempts.

Long-Term Security Practices

Regularly update and patch the system to prevent similar vulnerabilities.
Implement strong authentication mechanisms to enhance security.

Patching and Updates

Apply patches or updates provided by Zyxel to eliminate the hardcoded DSA SSH key vulnerability.