CVE-2014-5927 in Fast Customer
Summary
by MITRE
The FastCustomer -- Fast Customer (aka www.fastcustomer.com) application 3 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.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 09/07/2024
The vulnerability identified as CVE-2014-5927 affects the FastCustomer Android application version 3, representing a critical security flaw in the application's implementation of secure communication protocols. This issue manifests in the application's failure to properly validate X.509 certificates during SSL/TLS connections, creating a significant attack surface that enables malicious actors to compromise the integrity of data transmission between the mobile client and remote servers. The vulnerability specifically targets the certificate verification mechanism that should establish trust between the Android application and SSL servers, fundamentally undermining the security assurances that SSL/TLS protocols are designed to provide.
This technical flaw constitutes a severe deviation from established security practices and can be categorized under CWE-295, which addresses improper certificate validation in security protocols. The application's failure to verify SSL certificates creates a man-in-the-middle attack vector where attackers can present fraudulent certificates to establish connections with the victim's device. This vulnerability directly enables attackers to intercept, modify, or steal sensitive information transmitted through the application, including personal data, authentication credentials, or financial information. The absence of proper certificate chain validation means that the application accepts any certificate presented by a server, regardless of its authenticity or trustworthiness.
The operational impact of this vulnerability extends beyond simple data theft, as it fundamentally compromises the confidentiality and integrity of communications within the FastCustomer application. Mobile applications that fail to implement proper SSL certificate validation create persistent security risks for users who rely on the application for sensitive transactions or data handling. Attackers exploiting this vulnerability can establish transparent communication channels with malicious servers, potentially redirecting users to fraudulent websites or intercepting data in transit. This weakness affects the core security model of mobile applications and represents a failure to implement basic security controls that are expected in modern mobile software development practices.
The mitigation strategies for this vulnerability require immediate implementation of proper certificate validation mechanisms within the application. Developers must ensure that the application validates SSL certificates against trusted certificate authorities and implements certificate pinning where appropriate to prevent the acceptance of fraudulent certificates. This includes implementing proper certificate chain validation, checking certificate expiration dates, and verifying certificate signatures against trusted root certificates. Security patches should enforce strict certificate verification procedures that align with industry standards such as those specified in the NIST SP 800-57 guidelines for cryptographic key management and SSL/TLS implementation best practices. Organizations should also consider implementing network monitoring solutions to detect potential certificate-based attacks and establish incident response procedures for addressing such vulnerabilities in mobile applications. The remediation process should include comprehensive code reviews to ensure that all network communication within the application properly implements certificate validation mechanisms and that the application adheres to established security frameworks such as those defined in the OWASP Mobile Security Project guidelines for secure mobile application development.