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