EUVD-2024-1092

Comprehensive Technical Analysis of EUVD-2024-1092

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2024-1092 affects versions of the mysql2 package before 3.9.7. It is classified as an Arbitrary Code Injection vulnerability due to improper sanitization of the timezone parameter in the readCodeFor function. This vulnerability allows an attacker to inject arbitrary code by exploiting the native MySQL Server date/time function.

Severity Evaluation:

• Base Score: 9.8 (Critical)
• Base Score Version: CVSS 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P

The high base score indicates a critical vulnerability that can be exploited remotely without requiring user interaction or privileges. The impact on confidentiality, integrity, and availability is high, making this a severe threat.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Exploitation: An attacker can exploit this vulnerability over the network without needing local access.
• Code Injection: The primary attack vector involves injecting malicious code through the timezone parameter, which is not properly sanitized.

Exploitation Methods:

• SQL Injection: An attacker can craft a malicious SQL query that includes arbitrary code, which is then executed by the MySQL server.
• Command Injection: The attacker can inject commands that are executed by the underlying operating system, potentially leading to full system compromise.

3. Affected Systems and Software Versions

Affected Software:

• mysql2 package versions before 3.9.7

Affected Systems:

• Any system or application that uses the mysql2 package for database interactions, including but not limited to:
  • Web applications
  • Enterprise software
  • Cloud-based services
  • Mobile applications with backend databases

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Upgrade: Upgrade to mysql2 version 3.9.7 or later, which includes the fix for this vulnerability.
• Patch Management: Implement a robust patch management process to ensure timely updates of all software dependencies.

Long-Term Mitigation:

• Input Validation: Ensure all user inputs, including timezone parameters, are properly sanitized and validated.
• Least Privilege: Apply the principle of least privilege to database users and applications to limit the potential impact of an exploit.
• Monitoring and Logging: Implement comprehensive monitoring and logging to detect and respond to suspicious activities.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape due to the widespread use of the mysql2 package in various applications. Organizations across Europe, including government agencies, financial institutions, and healthcare providers, could be affected. The high severity of the vulnerability underscores the need for vigilant cybersecurity practices and timely response to security advisories.

6. Technical Details for Security Professionals

Vulnerability Details:

• CVE ID: CVE-2024-21511
• GHSA ID: GHSA-4rch-2fh8-94vw
• Affected Function: readCodeFor
• Vulnerable Parameter: Timezone parameter
• Exploit Mechanism: Improper sanitization allows for arbitrary code injection via native MySQL date/time functions.

References:

• NVD Entry
• GitHub Pull Request
• GitHub Commit
• GitHub Repository
• Release Notes
• Snyk Vulnerability Details

EPSS Score: 1 (indicating a low likelihood of exploitation in the wild, but this should not deter from immediate mitigation efforts)

ENISA IDs:

• Product ID: 4821ed46-40b6-3b26-ac0f-d5a69c6583c8
• Vendor ID: e6bad3a7-2f40-3995-a423-2df3c4ec0c0c

Assigner: Snyk

Conclusion: This vulnerability highlights the importance of regular security audits, timely updates, and robust input validation mechanisms. Organizations should prioritize upgrading to the patched version of mysql2 and implement additional security measures to mitigate the risk of similar vulnerabilities in the future.