CVE-2024-39012 in strategyen
Summary
by MITRE • 07/30/2024
ais-ltd strategyen v0.4.0 was discovered to contain a prototype pollution via the function mergeObjects. This vulnerability allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via injecting arbitrary properties.
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Analysis
by VulDB Data Team • 10/23/2024
The vulnerability identified as CVE-2024-39012 affects the ais-ltd strategyen v0.4.0 software and represents a critical prototype pollution flaw within the mergeObjects function. This type of vulnerability occurs when an application fails to properly validate or sanitize user input before incorporating it into object prototypes, creating a pathway for attackers to manipulate the prototype chain of objects. The mergeObjects function serves as the entry point for this vulnerability, where untrusted data can be injected into object properties, potentially compromising the application's integrity and security posture.
Prototype pollution vulnerabilities fall under the CWE-471 category, specifically CWE-471: Modification of Assumed-Immutable Data, and are closely related to CWE-1321: Improper Handling of Prototype Pollution. These flaws enable attackers to inject malicious properties into JavaScript object prototypes, which can then propagate throughout the application's object hierarchy. The vulnerability is particularly dangerous because it can be exploited to manipulate the behavior of core JavaScript functions and objects, potentially leading to arbitrary code execution or complete system compromise. The attack vector involves injecting specially crafted properties that get merged into the prototype, affecting all instances of that object type.
The operational impact of this vulnerability extends beyond simple code execution to include potential denial of service conditions and broader system compromise. When attackers successfully pollute prototypes, they can manipulate the application's behavior by altering fundamental object properties, potentially causing the application to crash or behave unpredictably. This can result in service disruption, data corruption, or unauthorized access to system resources. The vulnerability is particularly concerning in web applications where user input is frequently processed and merged into application objects, as it provides a direct pathway for attackers to gain elevated privileges or execute malicious code within the application's context.
Mitigation strategies for CVE-2024-39012 should focus on implementing robust input validation and sanitization mechanisms to prevent untrusted data from being merged into object prototypes. Security measures must include proper validation of object properties before merging operations, implementation of prototype protection mechanisms, and regular auditing of merge functions to identify potential injection points. Organizations should also consider implementing the ATT&CK technique T1059.007: Command and Scripting Interpreter: JavaScript, as this vulnerability can enable attackers to execute malicious JavaScript code through prototype manipulation. Additionally, the use of secure coding practices such as avoiding direct property assignment from untrusted sources, implementing strict object property validation, and employing sandboxing techniques can significantly reduce the attack surface and prevent exploitation of this prototype pollution vulnerability.