EUVD-2025-2883

Comprehensive Technical Analysis of EUVD-2025-2883

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in Coolify, an open-source tool for managing servers, applications, and databases, is classified as a critical authorization flaw. Prior to version 4.0.0-beta.361, any authenticated user could attach any existing private key on a Coolify instance to their own server. This flaw allows an attacker to execute arbitrary commands on the victim's server if the server configuration matches the victim's setup.

Severity Evaluation:

• Base Score: 10.0 (Critical)
• Base Score Version: CVSS 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

The CVSS score of 10.0 indicates the highest level of severity. The vulnerability can be exploited remotely (AV:N) with low complexity (AC:L), does not require any user interaction (UI:N), and has a high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). The scope change (S:C) indicates that the vulnerability affects components beyond the security scope of the vulnerable component.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Authenticated User Exploitation: An attacker with valid credentials can exploit the missing authorization to attach private keys to their server.
2. Remote Command Execution: If the server configuration (IP/domain, port, and user) matches the victim's server, the attacker can use the Terminal feature to execute arbitrary commands.

Exploitation Methods:

1. Key Attachment: The attacker attaches a private key from the Coolify instance to their server.
2. Command Execution: The attacker uses the Terminal feature to execute commands on the victim's server, potentially leading to full system compromise.

3. Affected Systems and Software Versions

Affected Software:

• Coolify versions prior to 4.0.0-beta.361

Affected Systems:

• Any system running the vulnerable versions of Coolify, particularly those with server configurations that match the victim's setup (IP/domain, port, and user).

4. Recommended Mitigation Strategies

1. Upgrade to the Latest Version: Immediately upgrade to Coolify version 4.0.0-beta.361 or later, which includes the fix for this vulnerability.
2. Access Control: Implement strict access controls to limit the number of authenticated users and their permissions.
3. Monitoring and Logging: Enable comprehensive logging and monitoring to detect any unauthorized access or suspicious activities.
4. Network Segmentation: Segment the network to limit the potential impact of a compromised server.
5. Regular Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate similar issues.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using Coolify within the European Union. Given the critical nature of the flaw, it could lead to widespread compromise of servers, applications, and databases, potentially resulting in data breaches, service disruptions, and financial losses. The high CVSS score underscores the urgency for immediate remediation to protect critical infrastructure and sensitive data.

6. Technical Details for Security Professionals

Vulnerability Details:

• CVE ID: CVE-2025-22609
• Assigner: GitHub_M
• References: GitHub Security Advisory

Technical Analysis:

• The vulnerability stems from a missing authorization check that allows any authenticated user to attach private keys to their server.
• The Terminal feature, when combined with the attached private key, enables remote command execution on the victim's server.
• The flaw affects Coolify instances running versions prior to 4.0.0-beta.361.

Mitigation Steps:

1. Patch Management: Ensure all Coolify instances are updated to version 4.0.0-beta.361 or later.
2. Access Controls: Review and enforce strict access controls and user permissions.
3. Intrusion Detection: Implement intrusion detection systems (IDS) to monitor for unauthorized access attempts.
4. Incident Response: Develop and test an incident response plan to address potential exploitation of this vulnerability.

Conclusion: The critical vulnerability in Coolify underscores the importance of timely patch management and robust security practices. Organizations must prioritize updating their Coolify instances and implementing additional security measures to mitigate the risk of exploitation. The European cybersecurity landscape requires vigilant monitoring and proactive measures to safeguard against such high-impact vulnerabilities.