GHSA-m85c-9mf8-m2m6

Unsafe deserialization in confire

Source: GitHub Advisory Database (reviewed) Critical CVE-2017-16763

Packages

Ecosystem	Package	Affected	Fixed in
PyPI	confire	<= 0.2.0	no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2017-16763 advisory
https://github.com/bbengfort/confire/issues/24 web
https://github.com/bbengfort/confire/commit/8cc86a5ec2327e070f1d576d61bbaadf861597ea web
https://github.com/advisories/GHSA-m85c-9mf8-m2m6 advisory
https://github.com/bbengfort/confire package
https://github.com/pypa/advisory-database/tree/main/vulns/confire/PYSEC-2017-78.yaml web
https://joel-malwarebenchmark.github.io/blog/2017/11/12/cve-2017-16763-configure-loaded-through-confire web