CVE-2022-37614 is a critical prototype pollution vulnerability identified in the enable function of mockery.js within the mfncooper mockery project. Prototype pollution vulnerabilities occur when an attacker is able to manipulate or inject properties into a JavaScript object's prototype, potentially altering the behavior of all objects that inherit from that prototype. This can lead to severe security issues such as arbitrary code execution, denial of service, or data corruption. The vulnerability is triggered via the key variable in mockery.js, allowing an unauthenticated remote attacker to exploit it without any user interaction. The CVSS 3.1 base score of 9.8 reflects the high severity, with attack vector being network-based, no privileges required, and no user interaction needed. The impact includes full compromise of confidentiality, integrity, and availability of affected systems. Although the vendor and specific product versions are not detailed, the vulnerability affects the mockery.js component, which is commonly used in JavaScript testing and mocking frameworks. No known exploits have been reported in the wild yet, and no official patches or mitigation links are provided at this time. The CWE-1321 classification confirms this as a prototype pollution issue, a known vector for critical security breaches in JavaScript environments.

For European organizations, the impact of CVE-2022-37614 can be significant, especially for those relying on JavaScript-based development and testing tools that incorporate mockery.js or similar libraries. Exploitation could lead to unauthorized code execution, data manipulation, or service disruption within development pipelines or production environments that use vulnerable components. This could compromise sensitive data, intellectual property, and disrupt business operations. Given the critical severity and ease of exploitation, attackers could leverage this vulnerability to gain footholds in corporate networks, escalate privileges, or move laterally. Organizations in sectors with stringent data protection regulations such as finance, healthcare, and critical infrastructure could face regulatory penalties and reputational damage if exploited. The lack of patches increases the urgency for proactive mitigation to avoid potential supply chain attacks or exploitation in CI/CD environments.

1. Immediate code audit: Identify usage of mockery.js or related libraries in development and production environments. 2. Apply strict input validation and sanitization around any code that interacts with mockery.js to prevent untrusted data from influencing prototype properties. 3. Employ runtime protections such as JavaScript sandboxing or integrity checks to detect anomalous prototype modifications. 4. Monitor development and CI/CD pipelines for unusual behavior or unexpected code changes that could indicate exploitation attempts. 5. If feasible, isolate or containerize environments using mockery.js to limit blast radius. 6. Engage with the open-source community or maintainers to track patch releases and apply updates promptly once available. 7. Consider alternative libraries or mocking frameworks with no known prototype pollution vulnerabilities until a fix is released. 8. Enhance logging and alerting on JavaScript runtime errors or prototype pollution indicators to enable early detection.