CVE-2024-38992 in frappejs
Summary
by MITRE • 07/01/2024
airvertco frappejs v0.0.11 was discovered to contain a prototype pollution via the function registerView. 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 • 07/01/2024
The vulnerability identified as CVE-2024-38992 affects airvertco frappejs version 0.0.11 and represents a critical prototype pollution flaw within the registerView function. This type of vulnerability occurs when an application fails to properly sanitize user input before using it to modify object prototypes, creating a pathway for attackers to inject malicious properties into the prototype chain. The issue stems from inadequate validation of input parameters that are processed by the registerView function, which serves as a core mechanism for view registration within the frappejs framework. When attackers manipulate the function parameters to include prototype-polluting keys such as _proto_, constructor, or prototype, they can effectively modify the behavior of all objects that inherit from the affected prototype.
The technical exploitation of this vulnerability follows established patterns for prototype pollution attacks as categorized under CWE-1321, where an attacker can manipulate object prototypes to achieve unauthorized code execution or system disruption. The vulnerability enables attackers to inject arbitrary properties that persist across all instances of objects sharing the same prototype, potentially allowing for code execution in contexts where the prototype pollution is leveraged. This flaw can be particularly dangerous in web applications where user input is processed through the registerView function, as it creates opportunities for remote code execution or denial of service conditions. The impact extends beyond simple data corruption since prototype pollution can lead to privilege escalation, information disclosure, or complete system compromise depending on how the polluted prototype is subsequently used within the application.
From an operational perspective, this vulnerability poses significant risks to organizations using frappejs v0.0.11, particularly those with web-facing applications that process user input through the registerView function. The attack surface is expanded when applications fail to implement proper input sanitization or when the framework itself does not adequately protect against prototype pollution. Security practitioners should note that prototype pollution vulnerabilities often align with ATT&CK technique T1059.007 for script injection and T1499.004 for denial of service, making this vulnerability particularly concerning for threat actors seeking to compromise systems. The vulnerability can be exploited through various means including HTTP request manipulation, form submissions, or API calls that eventually reach the vulnerable registerView function, potentially allowing attackers to gain unauthorized access to system resources or disrupt service availability.
Organizations should implement immediate mitigations including updating to the latest version of frappejs where this vulnerability has been patched, implementing strict input validation and sanitization for all parameters processed by the registerView function, and applying defensive programming practices such as using Object.freeze or Object.preventExtensions to prevent prototype modifications. Additional protective measures include implementing Content Security Policy headers, employing runtime monitoring to detect anomalous prototype modifications, and conducting thorough code reviews to identify other potential prototype pollution vectors within the application. The vulnerability also highlights the importance of following secure coding practices as outlined in OWASP Top Ten and NIST cybersecurity guidelines, emphasizing the need for comprehensive input validation and the principle of least privilege in application design.