EUVD-2025-21402

Comprehensive Technical Analysis of EUVD-2025-21402

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability in Dokploy, a self-hostable Platform as a Service (PaaS), allows unauthenticated users to execute arbitrary code and access sensitive environment variables by opening a pull request on a public repository. This issue affects versions prior to 0.24.3.

Severity Evaluation: The vulnerability has a CVSS Base Score of 9.4, which is classified as critical. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L indicates the following:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal complexity.
• Privileges Required (PR): None (N) - No privileges are required to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required.
• Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
• Confidentiality (C): High (H) - There is a high impact on confidentiality.
• Integrity (I): High (H) - There is a high impact on integrity.
• Availability (A): Low (L) - There is a low impact on availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Access: Attackers can exploit the vulnerability without needing any authentication.
• Pull Request Mechanism: The attack involves opening a pull request on a public repository, which triggers the preview deployment feature.

Exploitation Methods:

• Arbitrary Code Execution: By crafting a malicious pull request, attackers can execute arbitrary code within the preview deployment environment.
• Environment Variable Access: Attackers can access sensitive environment variables, potentially exposing secrets and configuration details.

3. Affected Systems and Software Versions

Affected Systems:

• All instances of Dokploy PaaS that are publicly accessible and using versions prior to 0.24.3.

Software Versions:

• Dokploy versions < 0.24.3

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade to Version 0.24.3: Immediately upgrade to Dokploy version 0.24.3 or later, which contains the fix for this vulnerability.
• Disable Preview Deployments: Temporarily disable the preview deployment feature until the upgrade is complete.

Long-Term Mitigations:

• Regular Security Audits: Conduct regular security audits and code reviews to identify and mitigate similar vulnerabilities.
• Access Controls: Implement strict access controls and authentication mechanisms for sensitive operations.
• Monitoring and Logging: Enhance monitoring and logging to detect and respond to suspicious activities promptly.

5. Impact on European Cybersecurity Landscape

Impact Assessment:

• Widespread Exposure: Given the popularity of Dokploy as a PaaS solution, this vulnerability poses a significant risk to numerous organizations across Europe.
• Data Breaches: The exposure of sensitive environment variables can lead to data breaches and unauthorized access to critical systems.
• Compliance Risks: Organizations may face compliance issues with regulations such as GDPR if sensitive data is compromised.

Regulatory and Policy Implications:

• ENISA Guidelines: Organizations should adhere to ENISA guidelines for securing PaaS environments and managing vulnerabilities.
• Incident Reporting: Ensure timely reporting of incidents to relevant authorities and stakeholders.

6. Technical Details for Security Professionals

Technical Analysis:

• Vulnerability Root Cause: The root cause is a lack of proper authentication and validation mechanisms in the preview deployment process.
• Exploit Code: The exploit involves crafting a pull request that includes malicious code designed to execute within the preview environment.
• Detection Methods: Implement intrusion detection systems (IDS) and intrusion prevention systems (IPS) to monitor for suspicious pull requests and unauthorized code execution.

References:

• GitHub Advisory: GHSA-h67g-mpq5-6ph5
• Fix Commit: Commit 1977235d313824b9764f1a06785fb7f73ab7eba2

Conclusion: The vulnerability in Dokploy is critical and requires immediate attention. Organizations should prioritize upgrading to the patched version and implementing robust security measures to mitigate the risk of exploitation. Regular security audits and adherence to regulatory guidelines will help maintain a secure cybersecurity posture.