CVE-2014-6611 in World App
Summary
by MITRE
The BlackBerry World app before 5.0.0.262 on BlackBerry 10 OS 10.2.0, before 5.0.0.263 on BlackBerry 10 OS 10.2.1, and before 5.1.0.53 on BlackBerry 10 OS 10.3.0 does not properly validate download/update requests, which allows user-assisted man-in-the-middle attackers to spoof servers and trigger the download of a crafted app by modifying the client-server data stream.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 04/01/2018
The vulnerability identified as CVE-2014-6611 represents a critical security flaw in the BlackBerry World application ecosystem that affected multiple versions of the BlackBerry 10 operating system. This issue stems from inadequate validation mechanisms within the app store client that governs how applications are downloaded and updated on BlackBerry devices. The vulnerability specifically targets the integrity checking processes that should verify the authenticity and legitimacy of software downloads before installation occurs.
The technical exploitation of this vulnerability occurs through man-in-the-middle attack vectors where malicious actors can intercept and modify network traffic between the BlackBerry World client and its servers. The flaw allows attackers to manipulate the data stream containing download requests and update notifications, enabling them to present forged server responses that appear legitimate to the vulnerable client application. This manipulation can result in the installation of malicious applications that have been crafted specifically to exploit the targeted device environment.
From an operational perspective, this vulnerability creates a significant risk for BlackBerry 10 users who rely on the World app for application distribution. The user-assisted nature of the attack means that successful exploitation requires some level of user interaction, typically involving the user initiating a download or update process. However, the potential impact remains severe as it allows attackers to install arbitrary applications that can compromise device security, steal user data, or provide persistent access to the compromised system. The vulnerability affects a range of BlackBerry 10 versions including 10.2.0, 10.2.1, and 10.3.0, indicating that this was a widespread issue across multiple generations of the operating system.
The security implications of this vulnerability align with CWE-347, which addresses the weakness of insufficient validation of cryptographic signatures or certificates, and can be mapped to ATT&CK technique T1195 which covers the use of untrusted or malicious software distribution channels. Organizations and individuals using affected BlackBerry 10 devices face the risk of unauthorized application installation that could lead to complete device compromise. The vulnerability demonstrates the critical importance of proper certificate validation and secure communication protocols in mobile application ecosystems, particularly when dealing with software update mechanisms that have direct access to system resources and user data.
Mitigation strategies for this vulnerability should include immediate installation of the vendor-provided security patches that address the validation flaw in the BlackBerry World client. Users should avoid downloading applications from untrusted sources and should verify the integrity of all software updates through official channels. System administrators should consider implementing network monitoring solutions to detect anomalous traffic patterns that might indicate man-in-the-middle activity. Additionally, organizations should ensure that their BlackBerry 10 devices are running the latest available security updates and should consider alternative application distribution methods that provide stronger cryptographic verification mechanisms. The vulnerability underscores the necessity of robust secure communication protocols and proper certificate validation in mobile platforms to prevent unauthorized software installation and maintain device integrity.