CVE-2023-34246

low-risk
Published 2023-06-12

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.

Do I need to act?

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0.31% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.2/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

Doorkeeper

Affected Vendors

Doorkeeper Project

References (13)

Exploit https://github.com/doorkeeper-gem/doorkeeper/issues/1589
Patch https://github.com/doorkeeper-gem/doorkeeper/pull/1646
Release Notes https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v5.6.6
Vendor Advisory https://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-7w2c-w47h-...
https://lists.debian.org/debian-lts-announce/2023/07/msg00016.html
Technical Description https://www.rfc-editor.org/rfc/rfc8252#section-8.6
Exploit https://github.com/doorkeeper-gem/doorkeeper/issues/1589
Patch https://github.com/doorkeeper-gem/doorkeeper/pull/1646
Release Notes https://github.com/doorkeeper-gem/doorkeeper/releases/tag/v5.6.6
Vendor Advisory https://github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-7w2c-w47h-...
https://lists.debian.org/debian-lts-announce/2023/07/msg00016.html
https://lists.debian.org/debian-lts-announce/2024/12/msg00010.html
Technical Description https://www.rfc-editor.org/rfc/rfc8252#section-8.6
20
/ 100
low-risk
Severity 14/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal