CVE-2022-40429 in d8s-ip-addresses
Summary
by MITRE • 09/19/2022
The d8s-ip-addresses for python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-networking package. The affected version is 0.1.0.
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Analysis
by VulDB Data Team • 10/20/2022
The vulnerability identified as CVE-2022-40429 represents a sophisticated supply chain attack targeting the Python package ecosystem through the PyPI repository. This incident demonstrates how malicious actors can compromise widely-used open source libraries by injecting backdoor code into legitimate packages that developers trust and regularly install. The affected package d8s-ip-addresses version 0.1.0 was specifically compromised, making it a critical concern for any Python environment that relies on this dependency for network address processing functionality.
The technical flaw manifests through the deliberate insertion of a malicious package named democritus-networking into the distribution channel. This backdoor operates by leveraging the trust model inherent in Python's package management system where developers automatically install packages from PyPI without thorough verification of the complete dependency chain. The malicious code executes during the normal installation and usage of the compromised package, creating a persistent threat vector that can be triggered by any application or script that imports the affected module.
The operational impact of this vulnerability extends far beyond the immediate compromise of individual systems. When developers install packages from PyPI, they typically assume that all dependencies are legitimate and safe. The backdoor in democritus-networking could potentially execute arbitrary code on victim systems, allowing attackers to establish persistent access, exfiltrate data, or use compromised systems for further attacks. This vulnerability undermines the fundamental security assumptions of the Python package ecosystem and highlights the critical need for supply chain security practices in open source software distribution.
Organizations and developers should immediately assess their dependency trees for any usage of the compromised d8s-ip-addresses package version 0.1.0 and remove it from their environments. The recommended mitigation strategy involves updating to newer versions of the package that have been verified as clean, implementing package integrity checks through cryptographic signatures, and establishing more rigorous verification processes for all third-party dependencies. This incident aligns with ATT&CK technique T1195.002 which covers Supply Chain Compromise through malicious updates to legitimate software packages. The vulnerability also maps to CWE-494 which describes the danger of downloading and executing unverified code from the internet, emphasizing the importance of software integrity verification processes in modern software development practices.