CVE-2014-7379 in Kiddie Kinderschoenen
Summary
by MITRE
The Kiddie Kinderschoenen (aka nl.eigenwinkelapp.kiddiekinderschoenen) application 1.0 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
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Analysis
by VulDB Data Team • 10/04/2024
The vulnerability identified as CVE-2014-7379 affects the Kiddie Kinderschoenen Android application version 1.0, representing a critical security flaw in the application's implementation of secure communications. This issue falls under the category of improper certificate validation, which is classified as CWE-295 in the Common Weakness Enumeration framework. The application fails to properly validate X.509 certificates during SSL/TLS connections, creating a significant attack surface that malicious actors can exploit to compromise user data integrity and confidentiality. The vulnerability specifically impacts the application's ability to establish trust with remote servers, fundamentally undermining the security model designed to protect sensitive information transmitted between the mobile client and backend services.
The technical implementation flaw manifests in the application's SSL/TLS handshake process where certificate verification is either completely bypassed or inadequately performed. This allows attackers to perform man-in-the-middle attacks by presenting fraudulent certificates that appear legitimate to the vulnerable application. The certificate validation process should typically involve checking certificate authority signatures, verifying certificate expiration dates, and ensuring certificate subject names match the target server. However, in this case, the application accepts any certificate without proper validation, making it susceptible to various attack vectors including SSL stripping, certificate spoofing, and session hijacking. The attack methodology aligns with techniques described in the MITRE ATT&CK framework under the T1046 category of Network Service Scanning and T1566 for Phishing with Spoofed Credentials.
The operational impact of this vulnerability extends beyond simple data theft to encompass complete compromise of user privacy and potential financial fraud. Users of the application may unknowingly transmit sensitive personal information, including names, contact details, and potentially payment information to attacker-controlled servers. The vulnerability affects all users of the specific Android application version and remains persistent until the application is updated with proper certificate validation mechanisms. Given the mobile nature of the application and its likely handling of personal data, the attack surface includes not only the direct data transmission but also potential credential theft that could enable further exploitation. The vulnerability demonstrates a fundamental failure in secure coding practices and highlights the importance of implementing proper cryptographic protocols in mobile applications.
Mitigation strategies for this vulnerability require immediate implementation of proper certificate validation procedures within the application. Developers should implement certificate pinning mechanisms that verify certificate fingerprints against pre-established trust anchors, ensuring that only certificates from known and trusted authorities are accepted. The application must validate certificate chains, check certificate expiration dates, and ensure proper certificate subject verification to prevent spoofing attacks. Security best practices recommend implementing the Certificate Transparency framework where possible, and following the OWASP Mobile Security Project guidelines for secure communication in mobile applications. Additionally, the application should be updated to use modern SSL/TLS protocols and cipher suites that provide adequate security guarantees. Regular security audits and code reviews should be implemented to prevent similar issues in future releases, and the application should be monitored for any attempts to exploit the vulnerability during the remediation period.