Auth bypass in Doorkeeper-Gem Doorkeeper

CVE-2023-34246

Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape. Prior to version 5.6.6, Doorkeeper automatically processes authorization requests without user consent for public clients that have been previous approved. Public clients are inherently vulnerable to impersonation, their identity cannot be assured. This issue is fixed in version 5.6.6.

Vulnerability class: Broken Authentication

EPSS: 0.007 (50.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-34246?
CVE-2023-34246 is a medium-severity vulnerability in Doorkeeper-Gem Doorkeeper, classified under Improper Authentication. CVSS score: 4.2/10. Published 2023-06-12.
How severe is CVE-2023-34246?
Medium severity. CVSS v3 base score is 4.2 out of 10.