Platform
nodejs
Component
lilconfig
Fixed in
3.1.1
3.1.1
CVE-2024-21537 is a critical vulnerability affecting versions 3.1.0 and earlier of the lilconfig Node.js package. This flaw stems from the insecure use of the eval function within the dynamicImport function, enabling an attacker to execute arbitrary code. Successful exploitation requires crafting a malicious input through the defaultLoaders function, potentially leading to complete system compromise. The vulnerability was published on 2024-10-31 and a fix is available in version 3.1.1.
The impact of CVE-2024-21537 is severe. An attacker who can successfully exploit this vulnerability can execute arbitrary code on the server running the affected Node.js application. This could lead to complete system takeover, data exfiltration, or the installation of malicious software. The eval function, when used with untrusted input, is inherently dangerous as it allows the execution of arbitrary strings as code. In this case, the defaultLoaders function provides a pathway for an attacker to inject malicious code that will be executed by the eval function. This is similar to other vulnerabilities where improper input sanitization leads to code execution.
CVE-2024-21537 is not currently listed on the CISA KEV catalog. The EPSS score is likely to be medium, given the availability of a fix and the potential for remote code execution. Public proof-of-concept exploits are currently unknown, but the vulnerability's nature makes it a likely target for exploitation. The vulnerability was publicly disclosed on 2024-10-31.
Exploit Status
EPSS
0.38% (60% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2024-21537 is to upgrade to version 3.1.1 or later of the lilconfig package. If upgrading is not immediately feasible, consider implementing input validation and sanitization on the defaultLoaders function to prevent the injection of malicious code. While a direct WAF rule is unlikely to be effective due to the nature of the vulnerability, carefully reviewing and restricting the allowed input to defaultLoaders can reduce the attack surface. There are no specific Sigma or YARA rules available at this time, but monitoring for unusual process execution originating from the lilconfig package is recommended.
Actualice la dependencia `lilconfig` a la versión 3.1.1 o superior. Esto se puede hacer ejecutando `npm install lilconfig@latest` o `yarn upgrade lilconfig` en su proyecto. Asegúrese de verificar que la actualización no introduzca incompatibilidades con otras dependencias.
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CVE-2024-21537 is a HIGH severity vulnerability in the lilconfig Node.js package, allowing attackers to execute arbitrary code due to insecure eval usage. Versions 3.1.0 and prior are affected.
You are affected if your project uses lilconfig version 3.1.0 or earlier. Check your dependencies with npm list lilconfig and upgrade if necessary.
Upgrade to lilconfig version 3.1.1 or later using npm install lilconfig@latest. If immediate upgrade isn't possible, sanitize input to the defaultLoaders function.
While no active exploitation has been confirmed, the vulnerability's nature makes it a likely target. Monitor your systems for suspicious activity.
Refer to the official lilconfig GitHub repository for updates and advisories: [https://github.com/johandavids/lilconfig](https://github.com/johandavids/lilconfig)
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