CVE-2023-51387 : Vulnerability Insights and Analysis

A high-severity Expression Injection Vulnerability in Hertzbeat has been identified and fixed in version 1.4.1.

Understanding CVE-2023-51387

This CVE refers to the improper control of generation of code ('Code Injection') in Hertzbeat, an open-source real-time monitoring system.

What is CVE-2023-51387?

Hertzbeat's versions prior to 1.4.1 were vulnerable to a crafted alert expression, allowing a malicious user to execute arbitrary commands on the Hertzbeat server.

The Impact of CVE-2023-51387

The vulnerability could be exploited by an attacker with access to the alert define function, compromising the integrity, confidentiality, and availability of the Hertzbeat instance.

Technical Details of CVE-2023-51387

This section provides more insight into the vulnerability details.

Vulnerability Description

Hertzbeat's improper sanitation for alert expressions allowed the execution of arbitrary commands, posing a significant security risk.

Affected Systems and Versions

Vendor: Dromara
Product: Hertzbeat
Affected Versions: < 1.4.1

Exploitation Mechanism

Through a crafted alert expression, a malicious user could exploit the vulnerability to execute unauthorized commands on the Hertzbeat server.

Mitigation and Prevention

Following the fix in version 1.4.1, users are advised to take immediate action and implement long-term security practices.

Immediate Steps to Take

Update Hertzbeat to version 1.4.1 or later to mitigate the vulnerability.
Restrict access to the alert define function.

Long-Term Security Practices

Regularly monitor for security advisories and updates from Hertzbeat.
Educate users on safe alert expression practices to prevent code injections.

Patching and Updates

Stay informed about security patches and updates released by Hertzbeat to address potential vulnerabilities.