CVE-2020-15338 : Security Advisory and Response

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a "Use of GET Request Method With Sensitive Query Strings" vulnerability.

Understanding CVE-2020-15338

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

What is CVE-2020-15338?

The vulnerability in Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 allows attackers to exploit sensitive query strings using the GET request method for /cnr requests.

The Impact of CVE-2020-15338

This vulnerability could potentially lead to unauthorized access to sensitive information and compromise the security of the affected systems.

Technical Details of CVE-2020-15338

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 vulnerability details.

Vulnerability Description

The issue involves the improper use of the GET request method with sensitive query strings in /cnr requests, posing a security risk.

Affected Systems and Versions

Product: Zyxel CloudCNM SecuManager
Versions: 3.1.0 and 3.1.1
Status: Affected

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating sensitive query strings through the GET request method for /cnr requests.

Mitigation and Prevention

Protecting systems from CVE-2020-15338.

Immediate Steps to Take

Apply security patches provided by Zyxel promptly.
Monitor network traffic for any suspicious activity related to /cnr requests.

Long-Term Security Practices

Regularly update and patch all software and firmware to prevent vulnerabilities.
Implement network segmentation and access controls to limit exposure to potential attacks.

Patching and Updates

Stay informed about security updates and advisories from Zyxel.
Follow best practices for secure configuration and management of Zyxel CloudCNM SecuManager.