Arbitrary Command Execution in PyAnyAPI YAML Parser

CVE-2017-16616 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

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.

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