CVE-2014-7205 in bassmaster plugin
Summary
by MITRE
Eval injection vulnerability in the internals.batch function in lib/batch.js in the bassmaster plugin before 1.5.2 for the hapi server framework for Node.js allows remote attackers to execute arbitrary Javascript code via unspecified vectors.
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Analysis
by VulDB Data Team • 11/30/2024
The CVE-2014-7205 vulnerability represents a critical server-side code execution flaw within the hapi server framework's bassmaster plugin ecosystem. This vulnerability specifically targets the internals.batch function located in lib/batch.js, which serves as a core component for handling batch processing operations within the framework. The vulnerability classification aligns with CWE-94, which describes "Improper Control of Generation of Code" or "Code Injection," indicating that the framework fails to properly validate or sanitize input parameters before incorporating them into executable code contexts.
The technical implementation of this vulnerability stems from inadequate input validation mechanisms within the batch processing functionality. When the internals.batch function processes incoming requests, it appears to concatenate or evaluate user-supplied parameters without proper sanitization, creating an environment where malicious actors can inject arbitrary JavaScript code that gets executed within the server context. This type of vulnerability typically occurs when the framework assumes that input parameters are safe and directly incorporates them into dynamic code generation processes. The unspecified vectors mentioned in the description suggest that multiple attack surfaces within the batch processing logic could potentially be exploited, making the vulnerability particularly dangerous as it may not be easily predictable or preventable through simple input filtering.
The operational impact of this vulnerability extends far beyond simple code execution, as it fundamentally compromises the security posture of any system utilizing affected versions of the hapi framework. Remote attackers can leverage this vulnerability to execute arbitrary JavaScript code on the server hosting the vulnerable application, potentially leading to complete system compromise, data exfiltration, or the establishment of persistent backdoors. The implications are particularly severe for web applications that rely on batch processing operations, as these functions often handle sensitive data and may operate with elevated privileges. This vulnerability directly maps to ATT&CK technique T1059.007, which covers "Command and Scripting Interpreter: JavaScript,' and represents a classic server-side injection attack that can bypass traditional network-level security controls.
Mitigation strategies for CVE-2014-7205 require immediate action to upgrade to version 1.5.2 or later of the bassmaster plugin, which contains the necessary patches to address the input validation deficiencies. Organizations should also implement comprehensive input sanitization measures at multiple layers of their application architecture, including validating all parameters before they reach the batch processing functions. Network segmentation and intrusion detection systems should monitor for suspicious JavaScript execution patterns, while application firewalls can help filter potentially malicious payloads. Additionally, regular security audits of third-party plugins and framework components should be conducted to identify similar vulnerabilities, as this type of code injection flaw often indicates broader architectural weaknesses in input handling and code generation processes. The vulnerability demonstrates the critical importance of proper input validation and the principle of least privilege in server-side application security.