CVE-2014-5791 in Daum Cloud
Summary
by MITRE
The Daum Cloud (aka net.daum.android.cloud) application 1.6.18 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 • 09/01/2024
The vulnerability identified as CVE-2014-5791 affects the Daum Cloud Android application version 1.6.18, 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 malicious actors can exploit to compromise user data and system integrity.
The technical flaw manifests in the application's SSL certificate validation mechanism, which operates outside the established security framework for Android applications. When the Daum Cloud application establishes connections to remote servers, it does not perform proper certificate chain validation or hostname verification as required by standard security protocols. This deficiency allows attackers to intercept communications by presenting forged certificates that appear legitimate to the vulnerable application, effectively bypassing the security measures designed to protect user data during transmission.
From an operational perspective, this vulnerability exposes users to man-in-the-middle attacks where attackers can position themselves between the mobile application and target servers to eavesdrop on communications or inject malicious content. The impact extends beyond simple data interception to include potential credential theft, session hijacking, and unauthorized access to sensitive user information stored within or transmitted by the cloud service. The vulnerability affects all users of the specific application version and creates persistent security risks that cannot be resolved through user action alone.
The attack vector for this vulnerability aligns with techniques described in the ATT&CK framework under credential access and defense evasion tactics, specifically targeting the secure communication channels that protect user data. This flaw directly violates the security principles outlined in CWE-295, which addresses improper certificate validation in SSL/TLS implementations. The vulnerability represents a failure to implement proper certificate pinning or validation mechanisms that would normally be expected in enterprise-grade mobile applications.
Mitigation strategies for this vulnerability require immediate application updates from the vendor, including implementation of proper certificate validation procedures that verify certificate chains against trusted root authorities. Security professionals should implement network monitoring to detect potential man-in-the-middle attacks targeting this specific application. Organizations using the affected application should consider temporary workarounds such as network segmentation or proxy configurations that can provide additional layers of protection while waiting for official patches. The vulnerability underscores the critical importance of implementing robust certificate validation mechanisms in mobile applications and demonstrates how seemingly minor implementation flaws can create significant security risks in mobile cloud services.