CVE-2023-6940 : What You Need to Know

This article provides detailed information about CVE-2023-6940, a critical vulnerability that affects the mlflow/mlflow software.

Understanding CVE-2023-6940

CVE-2023-6940 is a Command Injection vulnerability in mlflow/mlflow. Attackers can exploit this vulnerability with only one user interaction, which involves downloading a malicious configuration file. This can lead to full command execution on the victim system.

What is CVE-2023-6940?

The CVE-2023-6940 vulnerability allows attackers to execute arbitrary commands on a target system by exploiting the mlflow/mlflow software. This can result in unauthorized access, data theft, and potentially further compromise of the affected system.

The Impact of CVE-2023-6940

The impact of CVE-2023-6940 is considered critical with a CVSS base score of 9, categorizing it as a critical vulnerability. It has a high impact on confidentiality, integrity, and availability of the affected system, making it crucial to address promptly.

Technical Details of CVE-2023-6940

This section outlines the technical details of the CVE-2023-6940 vulnerability, including its description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

CVE-2023-6940 is classified under CWE-77, which pertains to the improper neutralization of special elements used in a command (Command Injection). This vulnerability allows malicious actors to execute arbitrary commands on the target system.

Affected Systems and Versions

The vulnerability impacts mlflow/mlflow software with versions less than 2.9.2. Systems running versions earlier than this are vulnerable to exploitation, putting them at risk of command execution by an attacker.

Exploitation Mechanism

Attackers can exploit CVE-2023-6940 by enticing a user to download a malicious configuration file. By manipulating this file, malicious commands can be injected into the system, leading to unauthorized command execution.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-6940, immediate actions need to be taken to secure the affected systems and prevent potential exploitation.

Immediate Steps to Take

Update mlflow/mlflow to version 2.9.2 or newer to patch the vulnerability.
Avoid downloading or executing files from untrusted or unknown sources.
Implement network security measures to restrict unauthorized access to critical systems.

Long-Term Security Practices

Regularly monitor software vulnerabilities and security advisories for timely updates.
Conduct periodic security audits and penetration testing to identify and address potential vulnerabilities.
Educate users and stakeholders on safe computing practices to minimize the risk of social engineering attacks.

Patching and Updates

Stay informed about security patches and updates released by the mlflow project. Apply patches promptly to ensure that known vulnerabilities, including CVE-2023-6940, are addressed effectively.

By following these proactive security measures, organizations can enhance their cybersecurity posture and reduce the likelihood of falling victim to exploits leveraging CVE-2023-6940.