CVE-2014-6767 in Juggle! FREE
Summary
by MITRE
The Juggle! FREE (aka com.jakyl.juggleforfree) application 3.0.0 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 • 09/15/2024
The vulnerability identified as CVE-2014-6767 affects the Juggle! FREE Android application version 3.0.0, 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 surface that adversaries can exploit to compromise user data and system integrity. The vulnerability specifically targets the certificate verification mechanism that should ensure the authenticity and integrity of SSL servers, thereby undermining the fundamental security assumptions of encrypted communications.
The technical flaw manifests as a complete absence of certificate validation within the application's SSL implementation, making it susceptible to man-in-the-middle attacks where attackers can present fraudulent certificates to establish seemingly legitimate connections with the application. This weakness directly violates standard security practices for mobile application development and aligns with CWE-295, which addresses improper certificate validation in security protocols. The application's failure to verify certificate chains, expiration dates, and issuer authenticity creates a pathway for attackers to intercept and manipulate sensitive information transmitted between the mobile device and remote servers. This vulnerability is particularly dangerous because it affects the core security infrastructure that should protect user data during network communications.
The operational impact of this vulnerability extends beyond simple data interception, as it enables attackers to gain unauthorized access to sensitive user information, potentially including personal data, login credentials, and financial information. Mobile applications that fail to validate SSL certificates create persistent security risks for users who may unknowingly transmit confidential data through compromised connections. The vulnerability affects not only the immediate application but also undermines user trust in the overall security posture of mobile applications. From an adversarial perspective, this flaw represents a low-effort, high-impact attack vector that can be exploited by threat actors with minimal technical expertise, as demonstrated by the ATT&CK framework's emphasis on credential access and data exfiltration techniques that leverage certificate validation failures.
Mitigation strategies for this vulnerability require immediate implementation of proper certificate validation mechanisms within the application's SSL/TLS stack. Developers must ensure that all X.509 certificates are validated against trusted certificate authorities, verified for proper expiration dates, and checked for valid certificate chains. The application should implement certificate pinning where appropriate to prevent the acceptance of fraudulent certificates even if they appear valid. Security updates should include comprehensive testing of SSL/TLS implementations to verify that certificate validation functions operate correctly under various network conditions. Organizations should also consider implementing network monitoring solutions to detect potential man-in-the-middle attacks targeting vulnerable applications, while users should be advised to avoid using the affected application until proper security patches are deployed. The remediation process must align with industry standards for mobile application security and should include regular security assessments to prevent similar vulnerabilities from emerging in future releases.