CVE-2020-15333 : Security Advisory and Response

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 allows attackers to discover accounts via MySQL 'select * from Administrator_users' and 'select * from Users_users' requests.

Understanding CVE-2020-15333

This CVE involves a vulnerability in Zyxel CloudCNM SecuManager versions 3.1.0 and 3.1.1 that enables attackers to uncover accounts through specific MySQL queries.

What is CVE-2020-15333?

The vulnerability in Zyxel CloudCNM SecuManager versions 3.1.0 and 3.1.1 allows malicious actors to identify accounts by executing certain MySQL queries.

The Impact of CVE-2020-15333

The vulnerability can lead to unauthorized access to sensitive account information, potentially compromising the security and confidentiality of the affected systems.

Technical Details of CVE-2020-15333

This section provides more technical insights into the CVE.

Vulnerability Description

Attackers can exploit the vulnerability to reveal accounts by using specific MySQL queries, such as 'select * from Administrator_users' and 'select * from Users_users'.

Affected Systems and Versions

Zyxel CloudCNM SecuManager 3.1.0
Zyxel CloudCNM SecuManager 3.1.1

Exploitation Mechanism

The vulnerability can be exploited by sending crafted MySQL queries to the affected Zyxel CloudCNM SecuManager instances.

Mitigation and Prevention

Protecting systems from CVE-2020-15333 is crucial to prevent unauthorized access and data breaches.

Immediate Steps to Take

Disable external access to MySQL services if not required.
Implement network segmentation to restrict access to sensitive systems.
Monitor MySQL queries for any suspicious activity.

Long-Term Security Practices

Regularly update Zyxel CloudCNM SecuManager to the latest secure versions.
Conduct security assessments and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply patches provided by Zyxel to address the vulnerability.