Auth bypass in Doorkeeper Project
CVE-2020-10187
Doorkeeper version 5.0.0 and later contains an information disclosure vulnerability that allows an attacker to retrieve the client secret only intended for the OAuth application owner. After authorizing the application and allowing access, the attacker simply needs to request the list of their authorized applications in a JSON format (usually GET /oauth/authorized_applications.json). An application is vulnerable if the authorized applications controller is enabled.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.021 (80.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.021 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/doorkeeper-gem/doorkeeper/releases (Third Party Advisory, Release Notes)
- github.com/doorkeeper-gem/doorkeeper/commit/25d038022c2fcad45af5b73f9d003cf38ff… (Patch, Third Party Advisory)
- github.com/doorkeeper-gem/doorkeeper/security/advisories/GHSA-j7vx-8mqj-cqp9 (Patch, Third Party Advisory)
- github.com/rubysec/ruby-advisory-db/pull/446 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-10187?
- CVE-2020-10187 is a high-severity vulnerability in Doorkeeper Project, classified under Missing Authorization. CVSS score: 7.5/10. Published 2020-05-04.
- How severe is CVE-2020-10187?
- High severity. CVSS v3 base score is 7.5 out of 10.