EUVD-2024-0897

Comprehensive Technical Analysis of EUVD-2024-0897

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability in CasaOS-UserService, identified as EUVD-2024-0897, allows attackers to perform password brute force attacks due to the lack of controls over login attempts. This can lead to unauthorized access with superuser privileges.

Severity Evaluation:

• Base Score: 9.1 (CVSS 3.1)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

The high base score indicates a critical vulnerability. The key factors contributing to this severity include:

• Attack Vector (AV:N): Network-based attack, meaning it can be exploited remotely.
• Attack Complexity (AC:L): Low complexity, indicating that the attack does not require specialized conditions.
• Privileges Required (PR:N): No privileges are required to exploit the vulnerability.
• User Interaction (UI:N): No user interaction is required.
• Scope (S:U): The vulnerability affects the entire system.
• Confidentiality (C:H): High impact on confidentiality.
• Integrity (I:H): High impact on integrity.
• Availability (A:N): No impact on availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Brute Force Attack: Attackers can use automated tools to repeatedly attempt login with various password combinations until they gain access.
• Credential Stuffing: Using previously leaked credentials from other breaches to attempt login.

Exploitation Methods:

• Automated Scripts: Attackers can deploy scripts that systematically try different passwords.
• Botnets: Utilizing a network of compromised devices to distribute the brute force attempts, making it harder to detect and block.

3. Affected Systems and Software Versions

Affected Versions:

• CasaOS-UserService versions starting from 0.4.4.3 up to but not including 0.4.7.

Unaffected Versions:

• CasaOS-UserService version 0.4.7 and later, which includes the patch for this vulnerability.

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade: Immediately upgrade to CasaOS-UserService version 0.4.7 or later.
• Rate Limiting: Implement rate limiting on login attempts to mitigate brute force attacks.
• Monitoring: Enhance monitoring to detect and respond to unusual login activity.

Long-Term Strategies:

• Multi-Factor Authentication (MFA): Implement MFA to add an additional layer of security.
• Account Lockout Policies: Implement policies that temporarily lock accounts after a certain number of failed login attempts.
• Regular Audits: Conduct regular security audits and vulnerability assessments.

5. Impact on European Cybersecurity Landscape

Regulatory Compliance:

• GDPR: Unauthorized access to user data can lead to GDPR violations, resulting in significant fines and legal consequences.
• NIS Directive: Organizations in critical sectors must ensure robust cybersecurity measures to comply with the NIS Directive.

Economic Impact:

• Financial Losses: Breaches can result in financial losses due to data theft, service disruptions, and reputational damage.
• Operational Disruptions: Unauthorized access can lead to operational disruptions, affecting business continuity.

Public Trust:

• Reputation: Breaches can erode public trust in digital services, impacting user adoption and retention.

6. Technical Details for Security Professionals

Vulnerability Details:

• CVE ID: CVE-2024-24767
• GHSA ID: GHSA-c69x-5xmw-v44x
• Patch Commit: GitHub Commit

References:

• GitHub Security Advisory
• NVD Detail
• CasaOS-UserService Repository
• Release Notes for Version 0.4.7
• Go Vulnerability Database

Assigner:

• GitHub_M

ENISA IDs:

• Product: CasaOS-UserService
• Vendor: IceWhaleTech

Conclusion: The vulnerability EUVD-2024-0897 in CasaOS-UserService is critical and requires immediate attention. Organizations should prioritize upgrading to the patched version and implement additional security measures to mitigate the risk of brute force attacks. Ensuring compliance with European cybersecurity regulations and maintaining public trust are crucial in the current digital landscape.