title: Prometheus Exporter Toolkit vulnerable to basic authentication bypass
description: Prometheus Exporter Toolkit is a utility package to build exporters. Prior to versions 0.7.2 and 0.8.2, if someone has access to a Prometheus web.yml file and users' bcrypted passwords, they can bypass security by poisoning the built-in authentication cache. Versions 0.7.2 and 0.8.2 contain a fix for the issue. There is no workaround, but attacker must have access to the hashed password to use this functionality.
problem types: CWE-303: Incorrect Implementation of Authentication Algorithm
affected:
{
vendor: prometheus
product: exporter-toolkit
versions:
version: < 0.7.2, status: affected
version: >= 0.8.0, < 0.8.2, status: affected
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
baseScore: 6.2
baseSeverity: MEDIUM
]