CVE-2020-15234
CVSS V2 Medium 4.9
CVSS V3 Medium 4.8
Description
ORY Fosite is a security first OAuth2 & OpenID Connect framework for Go. In Fosite before version 0.34.1, the OAuth 2.0 Client's registered redirect URLs and the redirect URL provided at the OAuth2 Authorization Endpoint where compared using strings.ToLower while they should have been compared with a simple string match. This allows an attacker to register a client with allowed redirect URL https://example.com/callback. Then perform an OAuth2 flow and requesting redirect URL https://example.com/CALLBACK. Instead of an error (invalid redirect URL), the browser is redirected to https://example.com/CALLBACK with a potentially successful OAuth2 response, depending on the state of the overall OAuth2 flow (the user might still deny the request for example). This vulnerability has been patched in ORY Fosite v0.34.1.
Overview
- CVE ID
- CVE-2020-15234
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-10-02T21:15:12
- Last Modified Date
- 2021-11-18T16:52:36
Weakness Enumerations
CPE Configuration (Product)
CPE | Vulnerable | Operator | Version Start | Version End |
---|---|---|---|---|
cpe:2.3:a:ory:fosite:*:*:*:*:*:*:*:* | 1 | OR | 0.34.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:S/C:P/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4.9
- Severity
- MEDIUM
- Exploitability Score
- 6.8
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 4.8
- Base Severity
- MEDIUM
- Exploitability Score
- 1.7
- Impact Score
- 2.7
References
Reference URL | Reference Tags |
---|---|
https://github.com/ory/fosite/commit/cdee51ebe721bfc8acca0fd0b86b030ca70867bf | Patch Third Party Advisory |
https://github.com/ory/fosite/security/advisories/GHSA-grfp-q2mm-hfp6 | Third Party Advisory |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-15234 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15234 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2022-05-10 06:45:53 | Added to TrackCVE | |||
2022-12-04 23:42:10 | 2020-10-02T21:15Z | 2020-10-02T21:15:12 | CVE Published Date | updated |
2022-12-04 23:42:10 | 2021-11-18T16:52:36 | CVE Modified Date | updated | |
2022-12-04 23:42:10 | Analyzed | Vulnerability Status | updated |