An exploitable vulnerability exists in the YAML parsing functionality in the YAMLParser method in Interfaces.py in PyAnyAPI before 0.6.1. A YAML parser can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.
References
- https://nvd.nist.gov/vuln/detail/CVE-2017-16616
- https://github.com/Stranger6667/pyanyapi/issues/41
- https://github.com/Stranger6667/pyanyapi/releases/tag/0.6.1
- https://joel-malwarebenchmark.github.io/blog/2017/11/08/cve-2017-16616-yamlparser-in-pyanyapi/
- https://pypi.python.org/pypi/pyanyapi/0.6.1
- https://github.com/advisories/GHSA-vg8g-jpm9-jh8r