CVE-2024-25674

Comprehensive Technical Analysis of CVE-2024-25674

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2024-25674

Description: An issue was discovered in MISP (Malware Information Sharing Platform) before version 2.4.184. The organisation logo upload feature is insecure due to a lack of checks for the file extension and MIME type.

CVSS Score: 9.8

Severity Evaluation: The CVSS score of 9.8 indicates a critical vulnerability. This high score is likely due to the potential for remote code execution (RCE), which can lead to complete system compromise. The lack of proper validation for file extensions and MIME types allows attackers to upload malicious files disguised as images, which can then be executed on the server.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Upload: If the upload feature is accessible without authentication, attackers can upload malicious files directly.
• Authenticated Upload: Even if authentication is required, an attacker with valid credentials can exploit the vulnerability.
• Phishing: Attackers can trick users into uploading malicious files through social engineering.

Exploitation Methods:

• File Upload: Attackers can upload a file with a malicious payload (e.g., a PHP script) disguised as an image.
• Remote Code Execution (RCE): Once the malicious file is uploaded, it can be executed on the server, leading to arbitrary code execution.
• Data Exfiltration: Attackers can use the uploaded file to exfiltrate sensitive data from the server.

3. Affected Systems and Software Versions

Affected Software:

• MISP versions before 2.4.184

Affected Systems:

• Any system running the vulnerable versions of MISP, including but not limited to:
  • Linux servers
  • Windows servers
  • Cloud-based deployments

4. Recommended Mitigation Strategies

Immediate Actions:

• Update: Upgrade to MISP version 2.4.184 or later, which includes the patch for this vulnerability.
• Temporary Mitigation: Disable the organisation logo upload feature until the system can be updated.

Long-Term Mitigation:

• Input Validation: Implement strict validation for file uploads, including checks for file extensions and MIME types.
• Access Control: Ensure that only authorized users can upload files and limit their permissions.
• Monitoring: Implement monitoring and logging for file upload activities to detect and respond to suspicious behavior.

5. Impact on Cybersecurity Landscape

Immediate Impact:

• Organizations using MISP for threat intelligence sharing are at risk of data breaches and system compromises.
• The vulnerability can be exploited to disrupt threat intelligence operations, leading to a loss of trust in shared data.

Long-Term Impact:

• Increased awareness of the importance of secure file upload mechanisms.
• Potential for similar vulnerabilities to be discovered in other platforms, leading to a broader focus on input validation and secure coding practices.

6. Technical Details for Security Professionals

Vulnerability Details:

• The vulnerability arises from the lack of proper validation for file extensions and MIME types during the organisation logo upload process.
• Attackers can exploit this by uploading files with malicious payloads, which can then be executed on the server.

Patch Information:

• The issue has been addressed in MISP version 2.4.184.
• The patch includes enhanced validation checks for file uploads to prevent the upload of malicious files.

References:

• Patch Commit
• Release Notes

Conclusion: CVE-2024-25674 is a critical vulnerability that underscores the importance of secure file upload mechanisms. Organizations using MISP should prioritize updating to the patched version to mitigate the risk of exploitation. Enhanced input validation and access control measures are essential for long-term security.

This analysis provides a comprehensive overview of CVE-2024-25674, including its severity, potential attack vectors, affected systems, mitigation strategies, and broader impact on the cybersecurity landscape. Security professionals should use this information to assess their risk and implement appropriate measures to protect their systems.