CVE-2023-37477 : Vulnerability Insights and Analysis

A command injection vulnerability in the firewall IP functionality of 1Panel has been identified, allowing attackers to execute arbitrary code on the target system. This CVE has a CVSS base score of 7.2, indicating a high severity level.

Understanding CVE-2023-37477

This section delves into the details of the CVE-2023-37477 vulnerability.

What is CVE-2023-37477?

1Panel, an open-source Linux server management panel, is susceptible to OS command injection via the

/hosts/firewall/ip

endpoint. By sending a crafted HTTP request, an attacker can execute arbitrary commands, potentially compromising the entire system.

The Impact of CVE-2023-37477

The vulnerability poses a significant risk to confidentiality, integrity, and availability, with a CVSS base score of 7.2. Attackers with high privileges can exploit this flaw to gain unauthorized access and execute malicious code on the target system.

Technical Details of CVE-2023-37477

Explore the technical aspects of CVE-2023-37477 in this section.

Vulnerability Description

1Panel's firewall IP functionality fails to validate user input, allowing attackers to inject and execute malicious commands through specially crafted HTTP requests.

Affected Systems and Versions

1Panel versions earlier than 1.4.3 are impacted by this vulnerability. Users of affected versions are at risk of exploitation unless they update to the patched version.

Exploitation Mechanism

Attackers can exploit the vulnerability by sending a specifically crafted HTTP request to the

/hosts/firewall/ip

endpoint, bypassing input validation and executing arbitrary commands on the target system.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2023-37477 in this section.

Immediate Steps to Take

Users are strongly advised to update their 1Panel installations to version 1.4.3 or later to mitigate the risk of exploitation. Implement strict firewall rules and access controls to reduce the attack surface.

Long-Term Security Practices

Regularly monitor for security advisories and updates from 1Panel. Conduct security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

The vulnerability has been addressed in commit

e17b80cff49

, which is integrated into release version 1.4.3. Ensure timely application of patches and updates to protect your systems from potential exploitation.