CVE-2017-16763

An exploitable vulnerability exists in the YAML parsing functionality in config.py in Confire 0.2.0

published November 10, 2017

CVSS
—
EPSS
4%
Percentile
91.4
In the wild
Unconfirmed
What it is

⚠️ A sneaky YAML parser is the culprit here! When users load their custom configs from ~/.confire.yaml, attackers can inject Python code without raising any alarms! 🔥 Think of it as a recipe book where you can add ingredients without the chef checking if they're safe. If someone sneaks in a dangerous ingredient, it can ruin the entire dish, or in this case, your system! An attacker could exploit this vulnerability to run arbitrary Python commands on the server, potentially leading to a full system compromise. That means they could steal data, manipulate configurations, or even bring your whole service to its knees! Absolutely devastating if left unaddressed!

Put simply

Think of it as a recipe book where you can add ingredients without the chef checking if they're safe. If someone sneaks in a dangerous ingredient, it can ruin the entire dish, or in this case, your system! This vulnerability arises from the improper handling of user-specific configurations in Confire 0.2.0, specifically through the yaml.load function. This function allows attackers to insert malicious Python code into the YAML files, which then gets executed when the file is loaded.

What to do

An attacker could exploit this vulnerability to run arbitrary Python commands on the server, potentially leading to a full system compromise. That means they could steal data, manipulate configurations, or even bring your whole service to its knees! Absolutely devastating if left unaddressed! To remediate this vulnerability, update Confire to a version that addresses this flaw. Consider using yaml.safe_load instead of yaml.load to prevent arbitrary code execution. Always validate and sanitize inputs to avoid similar issues in the future. You can handle this! Follow these steps, and you'll shore up your defenses in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04473 · 91.4th percentile
Published
2017-11-10T09:00Z
EPSS history
Timeline
  • 10 NOV 09:00Z
    An exploitable vulnerability exists in the YAML parsing functionality in config.py in Confire 0.2.0
    cvelistv5