cve/2017/CVE-2017-16763.md

CVE-2017-16763

Description

An exploitable vulnerability exists in the YAML parsing functionality in config.py in Confire 0.2.0. Due to the user-specific configuration being loaded from "~/.confire.yaml" using the yaml.load function, a YAML parser can execute arbitrary Python commands resulting in command execution. An attacker can insert Python into loaded YAML to trigger this vulnerability.

POC

Reference

• https://github.com/bbengfort/confire/issues/24
• https://joel-malwarebenchmark.github.io/blog/2017/11/12/cve-2017-16763-configure-loaded-through-confire/

Github

• https://github.com/ARPSyndicate/cvemon