CVE-2022-41380

Vulnerability

The d8s-yaml package for Python, version 0.1.0, as distributed on PyPI, includes a code-execution backdoor inserted by a third party. The backdoor consists of a dependency on the democritus-file-system package, which can be used to execute arbitrary malicious code. The affected version is 0.1.0 [1].

Exploitation

An attacker can upload a malicious democritus-file-system package to PyPI. When a user installs d8s-yaml==0.1.0 via pip install d8s-yaml==0.1.0, the malicious package is automatically installed as a dependency, allowing arbitrary code execution on the user's system [1].

Impact

Successful exploitation allows an attacker to execute arbitrary code on the victim's machine. The compromise is at the privilege level of the user installing the package, potentially leading to full system compromise, data theft, or further propagation of malware [1].

Mitigation

The recommended mitigation is to remove version 0.1.0 of d8s-yaml from PyPI, as suggested in the advisory [1]. Users should avoid installing or using version 0.1.0 of d8s-yaml and instead use a later patched version if available. No patched version is mentioned in the references, but removing the malicious dependency is critical [1].