CVE-2017-16763

Public Exploit

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.

9.8

CVSS

Severity: Critical

CVSS 3.0 •

CVSS 2.0 •

EPSS 2.02% Top 20%

Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.io

Affected: n/a n/a

References

Link	Tags
https://github.com/bbengfort/confire/issues/24	third party advisory exploit
https://joel-malwarebenchmark.github.io/blog/2017/11/12/cve-2017-16763-configure-loaded-through-confire/	third party advisory exploit
https://github.com/bbengfort/confire/commit/8cc86a5ec2327e070f1d576d61bbaadf861597ea	third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2017-16763?: CVE-2017-16763 has been scored as a critical severity vulnerability.
How to fix CVE-2017-16763?: To fix CVE-2017-16763, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-16763 being actively exploited in the wild?: It is possible that CVE-2017-16763 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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