CVE-2023-36812 : Vulnerability Insights and Analysis

OpenTSDB, an open-source, distributed, scalable Time Series Database (TSDB), is vulnerable to a Remote Code Execution (RCE) exploit. Attackers can execute malicious code by manipulating user input in the Gnuplot configuration file. This CVE has a CVSS base score of 9.8, indicating a critical severity level with high impacts on availability, confidentiality, and integrity.

Understanding CVE-2023-36812

This section delves into the details of the Remote Code Execution vulnerability in OpenTSDB.

What is CVE-2023-36812?

The CVE-2023-36812 details a Remote Code Execution vulnerability in OpenTSDB, allowing threat actors to execute arbitrary code by manipulating user input in the Gnuplot configuration file.

The Impact of CVE-2023-36812

The impact of this vulnerability is considered critical, with a high CVSS base score of 9.8. It can lead to severe consequences like unauthorized access, data breaches, and system compromise.

Technical Details of CVE-2023-36812

Explore the technical aspects of the Remote Code Execution vulnerability in OpenTSDB.

Vulnerability Description

The vulnerability arises from improper handling of user input in the Gnuplot configuration file, enabling attackers to inject and execute malicious code remotely.

Affected Systems and Versions

OpenTSDB versions prior to

2.4.2

are affected by this vulnerability. Users using versions lower than

2.4.2

should update to the patched release to mitigate the risk.

Exploitation Mechanism

By exploiting the vulnerability, threat actors can write and execute malicious code in the Gnuplot configuration file of OpenTSDB, gaining unauthorized control over the system.

Mitigation and Prevention

Discover the necessary steps to mitigate and prevent the exploitation of CVE-2023-36812.

Immediate Steps to Take

Users are strongly advised to update OpenTSDB to the patched

2.4.2

release to address the Remote Code Execution vulnerability. Alternatively, users can disable Gnuplot via the config option

tsd.core.enable_ui = false

and remove the shell files

mygnuplot.bat

and

mygnuplot.sh

to reduce the attack surface.

Long-Term Security Practices

Implementing secure coding practices, regular security audits, and staying updated with patches and security advisories can enhance the overall security posture and resilience against similar vulnerabilities.

Patching and Updates

Regularly check for updates and security patches from OpenTSDB and promptly apply them to ensure the system is protected against known vulnerabilities.