CVE-2017-16044 in d3.js
Summary
by MITRE
`d3.js` was a malicious module published with the intent to hijack environment variables. It has been unpublished by npm.
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Analysis
by VulDB Data Team • 02/14/2020
The vulnerability identified as CVE-2017-16044 represents a sophisticated supply chain attack targeting the popular data visualization library d3.js. This malicious npm module was designed to exploit the trust developers place in commonly used open source dependencies, demonstrating how attackers can compromise software ecosystems through seemingly legitimate package repositories. The attack specifically targeted environment variable manipulation, which serves as a critical vector for system compromise and privilege escalation within application environments.
The technical flaw manifested through a malicious package that masqueraded as a legitimate d3.js dependency. When developers installed this package through npm, it would execute code designed to steal and exfiltrate environment variables from the system. This approach aligns with common attack patterns documented in the attack tree framework where initial access is gained through supply chain compromises. The malicious code leveraged the trust model inherent in npm's package installation process, where developers typically do not scrutinize the underlying implementation details of transitive dependencies.
From an operational impact perspective, this vulnerability created significant risk for any system that relied on environment variables for configuration management, authentication tokens, or sensitive credential storage. The attack could have resulted in unauthorized access to production systems, data breaches, and compromise of entire application environments. The vulnerability's impact extends beyond immediate credential theft to potential lateral movement within networks, as stolen environment variables often contain authentication information for databases, cloud services, and other critical infrastructure components. This type of attack maps directly to the attack technique T1578 in the MITRE ATT&CK framework, which covers Valid Accounts and Defense Evasion through environment variable manipulation.
The remediation approach required immediate action from the npm community and affected organizations. The malicious package was promptly unpublished from the npm registry, but the broader implications required organizations to audit their dependency trees and implement more rigorous supply chain security practices. This incident highlighted the need for enhanced package verification mechanisms and the importance of maintaining updated security tooling to detect malicious packages in the software supply chain. Organizations should implement package integrity checks and maintain awareness of the principle of least privilege when managing environment variables in their applications. The vulnerability also underscores the importance of following security best practices outlined in the CWE database, particularly those related to software integrity and trust management in package repositories.