EUVD-2024-17588

Comprehensive Technical Analysis of EUVD-2024-17588

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2024-17588, also known as CVE-2024-1863, is a critical SQL Injection and Remote Code Execution (RCE) flaw in the Sante PACS Server. The vulnerability arises from improper validation of user-supplied input in the token parameter when processing HTTP requests on port 3000. This allows remote attackers to execute arbitrary code without requiring authentication.

Severity Evaluation:

• CVSS Base Score: 9.8 (Critical)
• CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The high base score indicates a severe vulnerability due to the following factors:

• Attack Vector (AV:N): Network-based attack.
• Attack Complexity (AC:L): Low complexity required to exploit.
• Privileges Required (PR:N): No privileges required.
• User Interaction (UI:N): No user interaction required.
• Scope (S:U): Unchanged.
• Confidentiality (C:H), Integrity (I:H), Availability (A:H): High impact on all three.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Remote Attack: An attacker can send crafted HTTP requests to port 3000 of the Sante PACS Server, exploiting the SQL Injection vulnerability to execute arbitrary code.
• Network-Based Exploitation: The attack can be carried out over the network, making it accessible to a wide range of potential attackers.

Exploitation Methods:

• SQL Injection: By injecting malicious SQL code into the token parameter, an attacker can manipulate the database queries executed by the server.
• Remote Code Execution: Leveraging the SQL Injection, an attacker can execute arbitrary code in the context of the NETWORK SERVICE, potentially leading to full system compromise.

3. Affected Systems and Software Versions

Affected Systems:

• Sante PACS Server: All versions up to and including 3.3.3 are affected.

Software Versions:

• PACS Server Version 3.3.3: Specifically identified as vulnerable.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Patching: Apply the latest security patches provided by Sante for the PACS Server.
• Network Segmentation: Isolate the PACS Server from public networks to limit exposure.
• Firewall Rules: Implement strict firewall rules to block unauthorized access to port 3000.

Long-Term Mitigation:

• Input Validation: Ensure all user-supplied inputs are properly validated and sanitized.
• Regular Audits: Conduct regular security audits and vulnerability assessments.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for suspicious activity.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to healthcare institutions and organizations using the Sante PACS Server within the European Union. The potential for unauthorized access, data breaches, and system compromise can lead to severe disruptions in healthcare services, compromising patient data and safety.

Regulatory Implications:

• GDPR Compliance: Organizations must ensure they comply with GDPR regulations, particularly in protecting personal data.
• ENISA Guidelines: Follow ENISA guidelines for securing healthcare systems and managing vulnerabilities.

6. Technical Details for Security Professionals

Technical Overview:

• Vulnerable Component: The token parameter processing in HTTP requests on port 3000.
• Exploitation Steps:
  1. Craft an HTTP request with a malicious token parameter.
  2. Send the request to the vulnerable server on port 3000.
  3. The server processes the token without proper validation, leading to SQL Injection.
  4. Execute arbitrary code in the context of NETWORK SERVICE.

Detection and Response:

• Log Analysis: Monitor server logs for unusual SQL queries and code execution attempts.
• Anomaly Detection: Use anomaly detection tools to identify abnormal network traffic patterns.
• Incident Response: Have an incident response plan in place to quickly address and mitigate any detected exploitation attempts.

References:

• ZDI Advisory: ZDI-24-193
• ENISA Product IDs:
  • PACS Server: 8db8ddf9-5ad6-36e1-aa17-63e489e0d6fa
  • PACS Server Version 3.3.3: a1fd741b-0e86-3c4a-992a-0e9e0d24fa5c
• ENISA Vendor ID:
  • Sante: f2619627-d49e-3e59-a4ec-051f44824e6a

By addressing this vulnerability promptly and comprehensively, organizations can significantly reduce the risk of exploitation and ensure the security and integrity of their healthcare systems.