EUVD-2024-2814

Comprehensive Technical Analysis of EUVD-2024-2814

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability in OpenDaylight Model-Driven Service Abstraction Layer (MD-SAL) through version 13.0.1 allows a controller with a follower role to configure flow entries in an OpenDaylight clustering deployment. This unauthorized configuration capability can lead to significant security risks.

Severity Evaluation: The vulnerability has a CVSS base score of 9.1, which is considered critical. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N indicates the following:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (S): Unchanged (U)
• Confidentiality (C): High (H)
• Integrity (I): High (H)
• Availability (A): None (N)

This high severity score underscores the critical nature of the vulnerability, particularly due to the high impact on confidentiality and integrity.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attacks: Given the network attack vector (AV:N), an attacker can exploit this vulnerability remotely without needing local access.
• Unauthenticated Access: The low attack complexity (AC:L) and no required privileges (PR:N) mean that an attacker does not need special access or user interaction to exploit the vulnerability.

Exploitation Methods:

• Flow Entry Configuration: An attacker can configure flow entries in the OpenDaylight clustering deployment, potentially disrupting network traffic, redirecting flows, or causing denial of service (DoS).
• Data Interception: By manipulating flow entries, an attacker could intercept and modify network traffic, leading to data breaches and integrity issues.

3. Affected Systems and Software Versions

Affected Systems:

• OpenDaylight Model-Driven Service Abstraction Layer (MD-SAL) versions up to and including 13.0.1.

Software Versions:

• All deployments of OpenDaylight MD-SAL up to version 13.0.1 are affected.

4. Recommended Mitigation Strategies

Immediate Actions:

• Patching: Upgrade to the latest version of OpenDaylight MD-SAL that addresses this vulnerability.
• Access Control: Implement strict access controls to limit the roles and permissions of controllers within the OpenDaylight clustering deployment.
• Network Segmentation: Segment the network to isolate critical components and reduce the attack surface.

Long-Term Strategies:

• Regular Audits: Conduct regular security audits and vulnerability assessments.
• Monitoring: Implement continuous monitoring to detect and respond to any unauthorized configuration changes.
• Incident Response Plan: Develop and maintain an incident response plan to quickly address any potential exploitation of this vulnerability.

5. Impact on European Cybersecurity Landscape

Regulatory Compliance:

• Organizations using OpenDaylight MD-SAL must ensure compliance with relevant European regulations such as GDPR and NIS Directive.
• Failure to address this vulnerability could result in data breaches, leading to regulatory penalties and loss of customer trust.

Critical Infrastructure:

• Given the widespread use of OpenDaylight in telecommunications and other critical infrastructure sectors, this vulnerability poses a significant risk to the stability and security of these systems.

Collaboration:

• European cybersecurity agencies and organizations should collaborate to share threat intelligence and best practices for mitigating this vulnerability.

6. Technical Details for Security Professionals

Vulnerability Details:

• CVE ID: CVE-2024-46942
• GHSA ID: GHSA-hv38-h5pj-c96j
• References:
  • NVD Entry
  • OpenDaylight MD-SAL Documentation
  • ArXiv Paper
  • GitHub Repository
  • JIRA Issue

Technical Mitigation:

• Code Review: Conduct a thorough code review to identify and fix any similar vulnerabilities in the MD-SAL codebase.
• Configuration Hardening: Implement configuration hardening to ensure that only authorized controllers can configure flow entries.
• Logging and Alerts: Enable detailed logging and set up alerts for any unauthorized configuration changes.

Conclusion: The vulnerability in OpenDaylight MD-SAL through version 13.0.1 is critical and requires immediate attention. Organizations should prioritize patching and implementing robust security measures to mitigate the risk. Collaboration among European cybersecurity stakeholders is essential to address this vulnerability effectively and protect critical infrastructure.