CVE-2020-15233
In Fosite from version 0.30.2 and before version 0.34.1, there is an issue in which an an attacker can override the registered redirect URL by performing an OAuth flow and requesting a redirect URL that is to the loopback adapter.
Does this matter?
Lower severity and a low EPSS score (0.80%). Track it; it rarely justifies an emergency change on its own.
Description
ORY Fosite is a security first OAuth2 & OpenID Connect framework for Go. In Fosite from version 0.30.2 and before version 0.34.1, there is an issue in which an an attacker can override the registered redirect URL by performing an OAuth flow and requesting a redirect URL that is to the loopback adapter. Attackers can provide both custom URL query parameters to their loopback redirect URL, as well as actually overriding the host of the registered redirect URL. These attacks are only applicable in scenarios where the attacker has access over the loopback interface. This vulnerability has been patched in ORY Fosite v0.34.1.
- CVSS 3.1
- 4.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.80% probability · 55th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-601
- Affected
- ory/fosite
- Source
- security-advisories@github.com
References
- https://github.com/ory/fosite/commit/cdee51ebe721bfc8acca0fd0b86b030ca70867bfPatch, Third Party Advisory
- https://github.com/ory/fosite/security/advisories/GHSA-rfq3-w54c-f9q5Third Party Advisory
- https://github.com/ory/fosite/commit/cdee51ebe721bfc8acca0fd0b86b030ca70867bfPatch, Third Party Advisory
- https://github.com/ory/fosite/security/advisories/GHSA-rfq3-w54c-f9q5Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.