EUVD-2025-4586

Comprehensive Technical Analysis of EUVD-2025-4586

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability in DocsGPT, identified as EUVD-2025-4586, allows for Remote Code Execution (RCE) due to improper parsing of JSON data using the eval() function. This flaw enables an unauthorized attacker to send arbitrary Python code to be executed via the /api/remote endpoint.

Severity Evaluation: The vulnerability has a base score of 9.3 according to CVSS 4.0, indicating a critical severity level. The CVSS vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N highlights the following characteristics:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Authentication (AT): None (N)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Confidentiality Impact (VC): High (H)
• Integrity Impact (VI): High (H)
• Availability Impact (VA): High (H)

This high severity score underscores the critical nature of the vulnerability, which can lead to significant damage if exploited.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attack: An attacker can exploit this vulnerability over the network without needing physical access to the system.
• Remote Code Execution: By sending specially crafted JSON data to the /api/remote endpoint, an attacker can execute arbitrary Python code on the server.

Exploitation Methods:

• Crafted JSON Payload: An attacker can craft a JSON payload that includes malicious Python code. When this payload is processed by the eval() function, the code is executed.
• Automated Exploitation: Given the low complexity and lack of authentication requirements, automated scripts can be used to exploit this vulnerability en masse.

3. Affected Systems and Software Versions

Affected Software:

• DocsGPT: Versions from 0.8.1 through 0.12.0 are affected by this vulnerability.

Vendor and Product Information:

• Vendor: arc53
• Product: DocsGPT

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Patching: Upgrade to a patched version of DocsGPT that addresses this vulnerability.
• Disable the Vulnerable Endpoint: Temporarily disable the /api/remote endpoint if patching is not immediately possible.
• Input Validation: Implement strict input validation and sanitization for JSON data to prevent the execution of arbitrary code.

Long-Term Mitigation:

• Code Review: Conduct a thorough code review to identify and rectify similar issues.
• Security Training: Educate developers on the risks associated with using eval() and promote safer alternatives.
• Regular Updates: Ensure that all software components are regularly updated to the latest versions.

5. Impact on European Cybersecurity Landscape

Cybersecurity Implications:

• Widespread Impact: Given the critical nature of the vulnerability, organizations using DocsGPT within the EU are at high risk of data breaches, unauthorized access, and system compromise.
• Compliance Risks: Organizations may face compliance issues with regulations such as GDPR if sensitive data is compromised due to this vulnerability.
• Reputation Damage: Successful exploitation can lead to significant reputational damage for affected organizations.

Regulatory and Policy Considerations:

• ENISA Guidelines: Organizations should follow ENISA guidelines for vulnerability management and incident response.
• CERT-PL Advisories: Adhere to advisories and recommendations provided by CERT-PL to mitigate the risk.

6. Technical Details for Security Professionals

Technical Analysis:

• Vulnerable Code: The use of eval() for parsing JSON data is inherently risky as it executes the input as Python code.
• Exploit Payload: An example of a malicious JSON payload might look like:

  {
    "__import__('os').system('rm -rf /')": null
  }
  

  This payload, when processed by eval(), would execute the command to delete all files on the system.

Detection and Monitoring:

• Log Analysis: Monitor logs for unusual activity related to the /api/remote endpoint.
• Intrusion Detection Systems (IDS): Implement IDS rules to detect and alert on suspicious JSON payloads.
• Network Traffic Analysis: Use network traffic analysis tools to identify and block malicious requests targeting the vulnerable endpoint.

Conclusion: The vulnerability EUVD-2025-4586 in DocsGPT is critical and requires immediate attention. Organizations should prioritize patching and implementing robust mitigation strategies to protect against potential exploitation. Regular security audits and adherence to best practices will help in maintaining a secure cyber environment.