CVE-2010-3934 in BlackBerry Device Software
Summary
by MITRE
The browser in Research In Motion (RIM) BlackBerry Device Software 5.0.0.593 Platform 5.1.0.147 on the BlackBerry 9700 does not properly restrict cross-domain execution of JavaScript, which allows remote attackers to bypass the Same Origin Policy via vectors related to a window.open call and an IFRAME element. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 04/20/2017
This vulnerability exists in the BlackBerry Device Software version 5.0.0.593 Platform 5.1.0.147 running on the BlackBerry 9700 device, representing a critical security flaw in the browser component that undermines fundamental web security mechanisms. The vulnerability stems from improper handling of cross-domain JavaScript execution, specifically within the context of window.open calls and IFRAME elements, which creates an avenue for attackers to circumvent the Same Origin Policy that is essential for web browser security.
The technical flaw manifests when the browser fails to properly enforce domain restrictions during JavaScript execution across different origins. When a malicious website attempts to open a new window or frame using window.open and subsequently embeds content through IFRAME elements, the software incorrectly allows JavaScript code from different domains to execute with elevated privileges. This bypass of the Same Origin Policy creates a significant security risk as it enables attackers to perform actions that should be restricted based on domain boundaries. The vulnerability is particularly concerning because it affects the core browser functionality that users rely on for secure web browsing operations.
The operational impact of this vulnerability is severe as it allows remote attackers to execute arbitrary JavaScript code across different domains without proper authorization. Attackers can leverage this flaw to perform cross-site scripting attacks, steal session cookies, access sensitive user data, or redirect users to malicious websites. The vulnerability essentially undermines the browser's security model by allowing unauthorized code execution that could lead to complete compromise of user sessions and data. This type of flaw is particularly dangerous in mobile environments where users may access sensitive corporate or personal information through their devices.
This vulnerability aligns with CWE-94, which describes "Improper Control of Generation of Code" and specifically relates to weaknesses in how code execution is controlled across different domains. The flaw also maps to ATT&CK technique T1059.007, which covers "Command and Scripting Interpreter: JavaScript," indicating that attackers can leverage this vulnerability to execute malicious JavaScript code. Additionally, the issue demonstrates characteristics of privilege escalation through browser-based attacks, which can be categorized under ATT&CK technique T1548.002, "Abuse Elevation Control Mechanism: Bypass User Account Control." Organizations using affected BlackBerry devices should implement immediate mitigations including software updates, network-level restrictions, and user education about avoiding suspicious websites.
The security implications extend beyond simple cross-site scripting as this vulnerability represents a fundamental breakdown in the browser's security architecture. The improper handling of IFRAME and window.open operations creates persistent exposure that can be exploited through various attack vectors including phishing campaigns, malicious advertisements, or compromised websites. Mobile device security is particularly vulnerable to such flaws since users often trust their devices more than traditional desktop browsers, making the exploitation of this vulnerability more likely to succeed in real-world scenarios. The vulnerability underscores the importance of proper input validation and domain restriction enforcement in mobile browser implementations, as well as the need for comprehensive security testing of mobile platform components.