CVE-2014-6844 in ABC Song
Summary
by MITRE
The ABC Song (aka com.tabtale.abcsingalong) 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.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 09/19/2024
The vulnerability identified as CVE-2014-6844 affects the ABC Song application version 1.0.0 for Android devices, representing a critical security flaw in the application's implementation of secure communication protocols. This issue stems from the application's failure to properly validate X.509 certificates during SSL/TLS connections, creating a significant attack vector that undermines the fundamental security assurances provided by transport layer security. The flaw essentially disables the certificate verification mechanism that is essential for establishing trust between the mobile application and remote servers, leaving users exposed to sophisticated man-in-the-middle attacks.
The technical implementation flaw manifests in the application's cryptographic handshake process where it accepts any certificate presented by a server without performing the required certificate chain validation, issuer verification, or signature authentication. This behavior directly violates established security protocols defined in RFC 5280 for X.509 certificate validation and represents a clear violation of the principle of certificate pinning as recommended in OWASP Mobile Security Project guidelines. The vulnerability creates a trust boundary failure where the application cannot distinguish between legitimate servers and malicious actors who have successfully intercepted the communication channel.
From an operational perspective, this vulnerability enables attackers to conduct successful man-in-the-middle attacks by presenting fraudulent certificates that appear legitimate to the vulnerable application. Attackers can exploit this weakness to intercept, modify, or redirect communications between the Android device and backend servers, potentially gaining access to sensitive user data including personal information, authentication credentials, or proprietary content. The impact extends beyond simple data theft to include potential service disruption, financial fraud, and reputational damage for both end users and the application developers. This weakness particularly affects applications that handle sensitive user information or transactional data, making it a prime target for cybercriminals seeking to exploit mobile application security gaps.
The mitigation strategies for this vulnerability involve implementing proper certificate validation mechanisms within the application's SSL/TLS implementation. Developers should enforce strict certificate verification procedures that include checking certificate validity periods, validating certificate chains against trusted root authorities, and implementing certificate pinning techniques to prevent certificate substitution attacks. The solution aligns with industry standards such as NIST SP 800-52 for certificate management and follows the ATT&CK framework's T1046 technique for network service scanning, which emphasizes the importance of proper cryptographic implementation to prevent such vulnerabilities. Organizations should also consider implementing additional security controls such as runtime application self-protection, network monitoring, and regular security assessments to detect and prevent exploitation of similar weaknesses in mobile applications. The remediation process requires comprehensive code review and testing to ensure that all SSL/TLS connections properly validate certificates before establishing secure communication channels.