CVE-2024-39010 in snapstate
Summary
by MITRE • 07/30/2024
chase-moskal snapstate v0.0.9 was discovered to contain a prototype pollution via the function attemptNestedProperty. 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 • 08/09/2024
The vulnerability identified as CVE-2024-39010 affects the chase-moskal snapstate package version 0.0.9 and represents a critical prototype pollution flaw within the attemptNestedProperty function. This type of vulnerability occurs when an application fails to properly sanitize user input before using it to set properties on JavaScript objects, allowing attackers to manipulate the prototype of objects and potentially execute arbitrary code or cause denial of service conditions. The issue stems from inadequate validation of property names during nested property assignment operations, creating a pathway for malicious actors to inject harmful properties into the object prototype chain.
Prototype pollution vulnerabilities are classified under CWE-1321 and are particularly dangerous because they can lead to various security consequences including remote code execution, privilege escalation, and denial of service attacks. The attack vector in this case involves the attemptNestedProperty function which likely processes user-supplied data to set nested properties within objects. When this function does not properly validate or sanitize the input parameters, attackers can inject malicious property names that get propagated to the object prototype, affecting all instances of that object type. This vulnerability aligns with ATT&CK technique T1059.007 for command and script injection, as the prototype pollution can be leveraged to execute arbitrary code in the context of the vulnerable application.
The operational impact of this vulnerability extends beyond simple code execution as it can compromise the entire application state and potentially lead to complete system compromise. When attackers successfully pollute the prototype, they can manipulate how objects behave throughout the application, potentially causing unexpected behavior, data corruption, or complete application failure. The vulnerability is particularly concerning in environments where the snapstate package is used for managing application states or configuration data, as it could allow attackers to manipulate critical application behavior or gain unauthorized access to sensitive information. The DoS aspect of this vulnerability means that even a simple attack could render the application unusable, causing operational disruptions and potential financial losses for affected organizations.
Mitigation strategies for CVE-2024-39010 should prioritize immediate patching of the chase-moskal snapstate package to version 0.0.10 or later, which should contain the necessary fixes for the prototype pollution vulnerability. Organizations should also implement input validation measures at multiple layers including sanitizing all user-provided data before it reaches the attemptNestedProperty function, implementing strict property name validation, and using secure coding practices that prevent direct assignment of user input to object properties. Additional defensive measures include monitoring for unusual property assignments, implementing proper access controls, and conducting regular security audits of third-party dependencies. The vulnerability demonstrates the critical importance of proper input validation and the potential consequences of inadequate sanitization in JavaScript applications, making it essential for development teams to adopt secure coding practices and maintain up-to-date dependencies to prevent similar issues from occurring in their software ecosystems.