CVE-2023-34246

MEDIUM

Doorkeeper < 5.6.6 - Improper Authentication via Public Client Auto-Approval

Title source: llm

Description

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.

References (7)

Core 7

Core References

Vendor Advisory x_refsource_confirm

https://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-7w2c-w47h-789w

Exploit, Issue Tracking x_refsource_misc

https://github.com/doorkeeper-gem/doorkeeper/issues/1589

Patch x_refsource_misc

https://github.com/doorkeeper-gem/doorkeeper/pull/1646

Release Notes x_refsource_misc

https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v5.6.6

Technical Description x_refsource_misc

https://www.rfc-editor.org/rfc/rfc8252#section-8.6

Mailing List

https://lists.debian.org/debian-lts-announce/2023/07/msg00016.html

Mailing List

https://lists.debian.org/debian-lts-announce/2024/12/msg00010.html

Scores

CVSS v3 4.2

EPSS 0.0031

EPSS Percentile 54.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-287

Status published

Products (2)

doorkeeper_project/doorkeeper < 5.6.6

rubygems/doorkeeper 0 - 5.6.6RubyGems

Published Jun 12, 2023

Tracked Since Feb 18, 2026