CVE-2014-6015 in TuCarro
Summary
by MITRE
The TuCarro (aka com.tucarro) application 2.0.5 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 • 09/09/2024
The vulnerability identified as CVE-2014-6015 affects the TuCarro mobile application version 2.0.5 for Android devices, representing a critical security flaw in the application's SSL/TLS certificate validation mechanism. This weakness stems from the application's failure to properly implement X.509 certificate verification during secure communications with backend servers, creating a significant attack surface that compromises the integrity of data transmission between mobile clients and web services. The vulnerability directly impacts the application's ability to establish trust with legitimate servers while simultaneously enabling malicious actors to exploit the trust relationship through certificate spoofing techniques.
From a technical perspective, the flaw manifests as a complete absence of certificate pinning or proper certificate validation routines within the application's secure communication stack. The application essentially accepts any SSL certificate presented by a server without performing the necessary cryptographic verification steps that should confirm the certificate's authenticity, validity, and proper chain of trust. This failure allows attackers to intercept communications using malicious certificates that appear legitimate to the application, effectively bypassing the fundamental security protections that SSL/TLS protocols are designed to provide. The vulnerability operates at the transport layer security level, specifically targeting the certificate validation process that should occur during the TLS handshake phase.
The operational impact of this vulnerability extends beyond simple data interception, as it enables comprehensive man-in-the-middle attacks that can compromise user data, session tokens, and sensitive personal information transmitted through the application. Attackers can exploit this weakness to eavesdrop on communications, modify data in transit, or redirect users to malicious endpoints while maintaining the appearance of legitimate service communication. The vulnerability affects all users of the affected application version and creates persistent exposure for any sensitive information processed through the application's secure channels, including user credentials, personal identification data, and financial information that may be transmitted during application usage.
Security professionals should recognize this vulnerability as a direct violation of established secure coding practices and security standards, specifically aligning with CWE-295 which addresses "Improper Certificate Validation" and representing a critical failure in the implementation of secure communication protocols. The flaw also maps to ATT&CK technique T1041 which describes data compression and encryption for exfiltration, as attackers can leverage this vulnerability to establish persistent access points for data exfiltration and surveillance activities. Organizations should implement immediate mitigations including certificate pinning, proper SSL certificate validation, and regular security audits of mobile applications to prevent similar vulnerabilities from occurring in their own software ecosystems. The vulnerability underscores the critical importance of implementing robust certificate validation mechanisms in mobile applications and demonstrates how seemingly minor implementation oversights can create significant security risks for end users and organizations alike.