CVE-2014-7683 in Free Canadian Author Previews
Summary
by MITRE
The Free Canadian Author Previews (aka com.booksellerscanada.authorpreview) application 1.0.0 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 • 10/14/2024
The vulnerability described in CVE-2014-7683 represents a critical security flaw in the Free Canadian Author Previews Android application version 1.0.0. This issue stems from the application's failure to properly validate X.509 certificates during SSL/TLS communications, creating a significant attack surface that malicious actors can exploit to compromise user data and system integrity. The application's insecure implementation of certificate verification mechanisms fundamentally undermines the security assurances that SSL/TLS protocols are designed to provide.
This technical flaw constitutes a classic case of insufficient certificate validation, which falls under CWE-295 - "Improper Certificate Validation." The application's failure to verify server certificates means that it accepts any certificate presented by a server without proper authentication, making it susceptible to man-in-the-middle attacks where attackers can establish fraudulent connections. The vulnerability specifically affects the SSL/TLS handshake process, where the application should validate certificate chains, check certificate expiration dates, and verify domain name matches against the server's certificate. Without these validations, the application operates in a state of trust without proper verification, essentially disabling the cryptographic security measures that protect data integrity and confidentiality.
The operational impact of this vulnerability extends beyond simple data interception, as it allows attackers to manipulate communications between the Android application and remote servers. This creates opportunities for credential theft, session hijacking, and data exfiltration attacks that can compromise user privacy and business-sensitive information. From an adversarial perspective, this vulnerability aligns with ATT&CK technique T1046 - "Network Service Scanning' and T1566 - 'Phishing', as attackers can leverage the insecure connection to deliver malicious payloads or capture user credentials. The vulnerability affects not only the application's own data but also potentially exposes users to broader security risks when they interact with other services that may share the same network infrastructure.
Mitigation strategies for this vulnerability require immediate implementation of proper certificate validation procedures within the application. Developers must implement certificate pinning mechanisms that verify server certificates against known good certificates or certificate authorities, ensuring that only trusted certificates are accepted. The application should validate certificate chains, check certificate expiration dates, and perform domain name verification to prevent certificate spoofing attacks. Additionally, implementing certificate transparency checks and regular security audits of cryptographic implementations can help prevent similar vulnerabilities in future releases. Organizations should also consider network-level protections such as SSL inspection and monitoring for suspicious certificate activity, while users should be educated about the importance of only downloading applications from trusted sources and keeping applications updated with security patches. The vulnerability demonstrates the critical importance of proper cryptographic implementation in mobile applications and serves as a reminder that even minor security oversights can create substantial risks for users and organizations alike.