EUVD-2024-29555

Comprehensive Technical Analysis of EUVD-2024-29555

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2024-29555 pertains to an incorrect access control mechanism in the fingerprint authentication feature of Phone Cleaner: Boost & Clean v2.2.0. The use of a deprecated API allows attackers to bypass the fingerprint authentication, potentially leading to unauthorized access to sensitive data.

Severity Evaluation:

• CVSS Base Score: 9.8 (Critical)
• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

• Attack Vector (AV:N): The vulnerability can be exploited over the network.
• Attack Complexity (AC:L): The attack requires low complexity.
• 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 does not change the security scope.
• Confidentiality (C:H), Integrity (I:H), Availability (A:H): All three CIA triad components are highly impacted.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attacks: Given the CVSS vector, attackers can exploit this vulnerability remotely over the network.
• Local Exploitation: If an attacker gains physical access to the device, they can bypass the fingerprint authentication locally.

Exploitation Methods:

• API Exploitation: Attackers can leverage the deprecated API to bypass the fingerprint authentication mechanism.
• Man-in-the-Middle (MitM) Attacks: Intercepting network traffic to exploit the vulnerability.
• Reverse Engineering: Analyzing the application's code to identify and exploit the deprecated API.

3. Affected Systems and Software Versions

Affected Software:

• Phone Cleaner: Boost & Clean v2.2.0

Affected Systems:

• Mobile Devices: Any device running the affected version of the Phone Cleaner application.
• Operating Systems: Likely Android devices, given the nature of the application.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update Software: Ensure all users update to the latest version of Phone Cleaner: Boost & Clean that addresses this vulnerability.
• Disable Fingerprint Authentication: Temporarily disable fingerprint authentication until a patch is applied.
• Network Security: Implement robust network security measures to detect and prevent unauthorized access.

Long-Term Mitigation:

• Code Review: Conduct thorough code reviews to identify and remove deprecated APIs.
• Regular Updates: Ensure regular updates and patches are applied to all applications.
• User Education: Educate users on the importance of updating applications and the risks associated with using outdated software.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to European users, particularly those relying on fingerprint authentication for securing sensitive data. The potential for unauthorized access to personal information can lead to data breaches, identity theft, and financial loss. This underscores the need for stringent cybersecurity measures and regular audits of mobile applications to ensure compliance with best practices and security standards.

6. Technical Details for Security Professionals

Vulnerability Details:

• Deprecated API: The specific deprecated API used in the fingerprint authentication mechanism should be identified and replaced with a secure, up-to-date API.
• Access Control Mechanism: Review and strengthen the access control mechanisms to ensure robust authentication and authorization processes.

Detection and Response:

• Intrusion Detection Systems (IDS): Deploy IDS to monitor for unusual network activity that may indicate an attempt to exploit this vulnerability.
• Log Analysis: Regularly analyze logs for any signs of unauthorized access or attempts to bypass authentication.
• Incident Response Plan: Develop and implement an incident response plan tailored to address vulnerabilities in mobile applications.

References:

• GitHub Post: https://zzzxiin.github.io/post/phone-cleaner/

Aliases:

• CVE-2024-31682
• GSD-2024-31682

Assigner:

• MITRE

EPSS:

• N/A

ENISA ID:

• Product: [{"id":"55b8acad-8f1b-3489-94e1-c5f2245a8af6","product":{"name":"n/a"},"product_version":"n/a"}]
• Vendor: [{"id":"cb53ff73-6b96-398a-8e2d-30555254ee8b","vendor":{"name":"n/a"}}]

By addressing this vulnerability promptly and comprehensively, organizations can mitigate the risk of unauthorized access and ensure the security of user data.