CVE-2023-4977 : Vulnerability Insights and Analysis

This CVE involves a code injection vulnerability in the GitHub repository librenms/librenms before version 23.9.0. It was published on September 15, 2023, by @huntrdev.

Understanding CVE-2023-4977

This section will delve into the details of CVE-2023-4977, explaining the vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-4977?

CVE-2023-4977 is a code injection vulnerability identified in the librenms/librenms GitHub repository. Specifically, it falls under the CWE-94 category, which refers to improper control of the generation of code. This vulnerability can allow an attacker to inject malicious code into the affected systems.

The Impact of CVE-2023-4977

With a CVSSv3 base score of 7.3 (High severity), this vulnerability poses a significant risk. Due to the code injection capability, an attacker could potentially execute arbitrary code, leading to unauthorized access, data manipulation, or further exploitation of the system.

Technical Details of CVE-2023-4977

In this section, we will explore the technical aspects of CVE-2023-4977, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability involves improper control of code generation in the librenms/librenms repository, allowing an attacker to inject malicious code.

Affected Systems and Versions

The code injection vulnerability impacts versions of librenms/librenms prior to version 23.9.0, with the status marked as "affected." Systems running versions lower than 23.9.0 are at risk.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious code into the affected librenms/librenms systems, potentially gaining unauthorized access or executing arbitrary commands.

Mitigation and Prevention

This section will focus on the steps to mitigate and prevent exploitation of CVE-2023-4977, both in the immediate term and for long-term security practices.

Immediate Steps to Take

System administrators are advised to update librenms/librenms to version 23.9.0 or later to mitigate the code injection vulnerability. Additionally, monitoring for any suspicious activities or unauthorized access is crucial.

Long-Term Security Practices

Implementing secure coding practices, regular security assessments, and keeping software up to date are essential for maintaining a secure environment and reducing the risk of code injection vulnerabilities like CVE-2023-4977.

Patching and Updates

Regularly applying security patches and updates provided by librenms for the librenms/librenms repository is crucial to address known vulnerabilities and enhance the overall security posture of the system.