CVE-2017-16616

Advisory

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.

Affected package

Affected versions

Fixed versions

Vulnerability changelog

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.


MISC:https://joel-malwarebenchmark.github.io/blog/2017/11/08/cve-2017-16616-yamlparser-in-pyanyapi/: https://joel-malwarebenchmark.github.io/blog/2017/11/08/cve-2017-16616-yamlparser-in-pyanyapi/
CONFIRM:https://github.com/Stranger6667/pyanyapi/issues/41: https://github.com/Stranger6667/pyanyapi/issues/41
CONFIRM:https://github.com/Stranger6667/pyanyapi/releases/tag/0.6.1: https://github.com/Stranger6667/pyanyapi/releases/tag/0.6.1
CONFIRM:https://pypi.python.org/pypi/pyanyapi/0.6.1: https://pypi.python.org/pypi/pyanyapi/0.6.1

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16616
• https://pypi.python.org/pypi/pyanyapi/0.6.1
• https://github.com/Stranger6667/pyanyapi/releases/tag/0.6.1
• https://github.com/Stranger6667/pyanyapi/issues/41
• https://joel-malwarebenchmark.github.io/blog/2017/11/08/cve-2017-16616-yamlparser-in-pyanyapi/