CVE-2014-7354 in Penumbra eMag
Summary
by MITRE
The Penumbra eMag (aka com.magzter.penumbraemag) application 3.0 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 • 10/03/2024
The vulnerability identified as CVE-2014-7354 affects the Penumbra eMag Android application version 3.0, representing a critical security flaw in the application's implementation of secure communication protocols. This issue falls under the category of inadequate certificate validation, which is a fundamental weakness in cryptographic security implementations. The application's failure to properly verify X.509 certificates from SSL servers creates an exploitable condition that undermines the integrity of secure communications between the mobile client and remote servers. Such a flaw directly violates established security principles that require proper certificate chain validation to prevent unauthorized parties from establishing fraudulent secure connections.
The technical nature of this vulnerability stems from the application's omission of certificate verification processes during SSL/TLS handshakes. When an Android application establishes a secure connection to a server, it should validate the server's X.509 certificate against trusted certificate authorities to ensure the authenticity of the server. The Penumbra eMag application bypasses this crucial step, allowing attackers to present fraudulent certificates that appear legitimate to the application. This weakness enables man-in-the-middle attacks where adversaries can intercept and modify communications between the vulnerable application and its intended servers, potentially accessing sensitive user data, credentials, or proprietary information transmitted through the insecure channel.
The operational impact of this vulnerability extends beyond simple data interception, as it fundamentally compromises the trust model that secure mobile applications must maintain. Mobile applications that fail to validate certificates create opportunities for attackers to establish fraudulent connections that appear legitimate to users, making detection extremely difficult. The vulnerability affects any sensitive information processed by the application, including user credentials, personal data, financial information, or content access tokens. This flaw represents a direct violation of security controls that should be implemented according to industry standards such as those outlined in the OWASP Mobile Security Project, which emphasizes the importance of secure communication channels in mobile applications.
From a threat modeling perspective, this vulnerability aligns with attack patterns documented in the MITRE ATT&CK framework under the technique of credential access and defense evasion. The flaw enables attackers to perform session hijacking and data theft without detection, as the application's security mechanisms fail to identify the compromised communication channel. The vulnerability is particularly concerning in mobile environments where applications often handle sensitive user information and may be running on devices with limited security monitoring capabilities. Organizations should consider implementing network-level monitoring and certificate pinning as immediate mitigations to address this vulnerability, while developers should ensure proper certificate validation is implemented according to established security guidelines and best practices.
The root cause of this vulnerability can be categorized as CWE-295, which specifically addresses improper certificate validation in security protocols. This weakness represents a failure in the application's security architecture to implement proper cryptographic validation controls that are essential for maintaining secure communications. The vulnerability demonstrates a lack of adherence to fundamental security principles that require applications to validate server certificates against trusted authorities and implement proper certificate chain validation procedures. This flaw underscores the importance of security testing and code review processes that specifically examine cryptographic implementation patterns to identify and remediate such critical security weaknesses before deployment in production environments.