CVE-2017-5941 in node-serialize Package
Summary
by MITRE
An issue was discovered in the node-serialize package 0.0.4 for Node.js. Untrusted data passed into the unserialize() function can be exploited to achieve arbitrary code execution by passing a JavaScript Object with an Immediately Invoked Function Expression (IIFE).
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 01/01/2025
The vulnerability identified as CVE-2017-5941 represents a critical security flaw within the node-serialize package version 0.0.4 for Node.js environments. This issue stems from insufficient input validation and sanitization mechanisms within the unserialize() function, creating a pathway for malicious actors to execute arbitrary code on affected systems. The vulnerability specifically targets applications that utilize the node-serialize package for processing untrusted data inputs, making it particularly dangerous in web applications and server-side environments where user input is commonly processed.
The technical exploitation of this vulnerability relies on the manipulation of JavaScript Object Notation structures that contain Immediately Invoked Function Expressions. When the unserialize() function processes such maliciously crafted objects, it inadvertently executes the embedded IIFE code within the context of the running Node.js application. This occurs because the function does not properly validate the structure or content of serialized objects before attempting to reconstruct them, allowing attackers to inject executable code that gets interpreted and executed by the Node.js runtime. The vulnerability maps directly to CWE-94, which describes "Improper Control of Generation of Code ('Code Injection')" and falls under the ATT&CK technique T1059.006 for "Command and Scripting Interpreter: JavaScript", demonstrating how attackers can leverage JavaScript execution capabilities to compromise systems.
The operational impact of this vulnerability extends beyond simple code execution, as it can enable full system compromise when applications process untrusted data through the affected serialize function. Attackers can leverage this vulnerability to perform privilege escalation, data exfiltration, and persistence mechanisms within compromised environments. The vulnerability is particularly concerning because it can be exploited through various attack vectors including web forms, API endpoints, and file uploads where user-supplied data is serialized and later deserialized. Organizations running applications that utilize the node-serialize package are at significant risk, especially those handling user-generated content or processing external data sources without proper sanitization measures.
Mitigation strategies for CVE-2017-5941 require immediate action to address the root cause through multiple defensive layers. The primary recommendation involves upgrading to a patched version of the node-serialize package or replacing it entirely with more secure serialization alternatives such as JSON.stringify() and JSON.parse() for handling trusted data or implementing proper input validation mechanisms. Organizations should also implement strict input validation and sanitization protocols for all data entering the application through serialization functions, particularly when processing external or user-supplied data. Network-level protections including web application firewalls and input filtering mechanisms can provide additional defense in depth. Security teams should conduct comprehensive vulnerability assessments to identify all applications using the affected package and ensure proper patch management procedures are in place. The vulnerability also highlights the importance of following secure coding practices and avoiding the use of dangerous deserialization functions that can execute arbitrary code, aligning with ATT&CK technique T1068 for "Exploitation for Privilege Escalation" and emphasizing the need for proper security controls throughout the software development lifecycle.