CVE-2022-41384 in d8s-domains
Summary
by MITRE • 10/12/2022
The d8s-domains package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-urls package. The affected version is 0.1.0.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 05/20/2025
The vulnerability identified as CVE-2022-41384 represents a sophisticated supply chain attack targeting the Python package ecosystem through the d8s-domains package distributed via PyPI. This incident demonstrates the critical risks associated with third-party dependencies and the potential for malicious actors to compromise software distribution channels. The backdoor was specifically embedded within version 0.1.0 of the d8s-domains package, making it particularly dangerous as it affected a widely-used package that developers might have integrated into their applications without proper scrutiny. The attack vector involved the insertion of a malicious dependency named democritus-urls, which served as the code execution mechanism for the backdoor. This type of attack exploits the trust model inherent in package managers where developers assume that packages downloaded from official repositories are safe and legitimate.
The technical flaw in this vulnerability stems from the improper validation and verification of package dependencies during the software distribution process. The democritus-urls package was designed to execute arbitrary code when the d8s-domains package was installed or imported, creating a persistent backdoor within any system that used the affected version. This backdoor functionality aligns with CWE-494, which addresses the download of code without integrity checking, and represents a classic example of a malicious dependency attack. The vulnerability operates at the software supply chain level, where attackers compromise legitimate packages by inserting malicious code into the dependency chain, making detection difficult as the malicious code appears to be part of the normal package functionality.
The operational impact of this vulnerability extends beyond simple code execution, as it represents a fundamental breach of trust in the Python package ecosystem. Organizations that had integrated the affected version of d8s-domains into their applications would have unknowingly exposed their systems to potential compromise, with the malicious package capable of executing arbitrary commands, exfiltrating data, or establishing persistent access. This vulnerability affects the broader software supply chain security model and demonstrates how attackers can leverage the trust placed in package repositories to gain unauthorized access to systems. The attack pattern follows principles outlined in the ATT&CK framework under software supply chain compromises, where adversaries compromise the integrity of software artifacts to gain access to target systems.
Mitigation strategies for this vulnerability require immediate action to remove and replace the compromised package with a verified, secure version. System administrators and developers should audit their dependency trees for the affected package and ensure all instances are updated to a non-malicious version. The recommended approach includes implementing package integrity verification mechanisms such as checksum validation and using trusted package sources with proper signing verification. Organizations should also consider implementing software composition analysis tools to monitor dependencies for malicious packages and establish policies for verifying package authenticity before installation. The incident highlights the importance of maintaining secure software development practices and the need for robust supply chain security measures to prevent similar attacks in the future, emphasizing the necessity of continuous monitoring and verification of all third-party dependencies in the software development lifecycle.