GHSA-rfq3-w54c-f9q5
Suggest an improvement- Source
- https://github.com/advisories/GHSA-rfq3-w54c-f9q5
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/05/GHSA-rfq3-w54c-f9q5/GHSA-rfq3-w54c-f9q5.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-rfq3-w54c-f9q5
- Aliases
- Related
- Published
- 2021-05-24T17:00:12Z
- Modified
- 2023-11-08T04:02:34.740521Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C CVSS Calculator
- Summary
- OAuth2 Redirect URL validity does not respect query parameters and character casing for loopback addresses
- Details
-
Impact
fosite#400 (released as v0.30.2) introduced a new feature for handling redirect URLs pointing to loopback interfaces (rfc8252#section-7.3). As part of that change new behavior was introduced which failed to respect the redirect URL's (only for loopback interfaces!) query parameters
- Registering a client with allowed redirect URL
http://127.0.0.1/callback - Performing OAuth2 flow and requesting redirect URL
http://127.0.0.1/callback?bar=foo - Instead of an error, the browser is redirected to
http://127.0.0.1/callback?bar=foowith a potentially successful OAuth2 response.
as well as the host parameter (as long as the host is a loopback interface):
- Registering a client with allowed redirect URL
https://example.com/callback - Performing OAuth2 flow and requesting redirect URL
http://127.0.0.1/callback - Instead of an error, the browser is redirected to
http://127.0.0.1/callbackwith a potentially successful OAuth2 response.
These bugs are only applicable in scenarios where the attacker has control over the loopback interface (
localhost,127.0.0.1,[::1]) where the browser performing the OAuth2 flow is running. - Registering a client with allowed redirect URL
- Database specific
{ "nvd_published_at": "2020-10-02T21:15:00Z", "severity": "MODERATE", "cwe_ids": [ "CWE-20", "CWE-601" ], "github_reviewed_at": "2021-05-21T22:14:38Z", "github_reviewed": true }- References
Affected packages
Go / github.com/ory/fosite
Package
- Name
- github.com/ory/fosite
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/ory/fosite