CVE-2023-4882 : Vulnerability Insights and Analysis

This CVE, assigned by INCIBE, pertains to multiple vulnerabilities found in Open5GS. It was published on October 3, 2023.

Understanding CVE-2023-4882

This section delves into the details of the CVE-2023-4882 vulnerability affecting Open5GS.

What is CVE-2023-4882?

CVE-2023-4882 is described as a Denial of Service (DOS) vulnerability that enables an attacker to register a new Virtual Network Function (VNF) value. This malicious action triggers the args_assets() function in the arg-log.php file, leading to the execution of the args-abort.c file and subsequently crashing the service.

The Impact of CVE-2023-4882

The impact of this vulnerability is identified as CAPEC-125 Flooding. With a CVSS v3.1 base score of 7.5 (High Severity) and a HIGH availability impact, this vulnerability poses a significant risk to affected systems.

Technical Details of CVE-2023-4882

In this section, we explore the technical aspects of CVE-2023-4882.

Vulnerability Description

The vulnerability stems from an improper resource shutdown or release (CWE-404) within Open5GS, allowing an attacker to exploit the system for DOS attacks.

Affected Systems and Versions

Open5GS versions up to and including 2.4.10 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the registration of VNF values, triggering specific functions that ultimately lead to service crashes.

Mitigation and Prevention

To safeguard against CVE-2023-4882, immediate actions and long-term security measures are essential.

Immediate Steps to Take

System administrators should monitor for updates and patches from Open5GS to address this vulnerability promptly. Additionally, network monitoring and access controls can help mitigate risks.

Long-Term Security Practices

Implementing robust cybersecurity protocols, conducting regular security audits, and educating users on best practices can enhance the overall security posture of the system.

Patching and Updates

Stay informed about security advisories from Open5GS and promptly apply any released patches or updates to mitigate the risk posed by CVE-2023-4882. Open5GS is actively working on fixes for the reported vulnerabilities.

By following these mitigation strategies and staying proactive in addressing security vulnerabilities, organizations can enhance the resilience of their systems against potential exploits like CVE-2023-4882.