CVE-2020-15233
MEDIUM6.1EPSS 0.26%OAuth2 Redirect URL validity does not respect query parameters and character casing for loopback addresses
描述
### Impact [fosite#400](https://github.com/ory/fosite/pull/400) (released as v0.30.2) introduced a new feature for handling redirect URLs pointing to loopback interfaces ([rfc8252#section-7.3](https://tools.ietf.org/html/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 1. Registering a client with allowed redirect URL `http://127.0.0.1/callback` 2. Performing OAuth2 flow and requesting redirect URL `http://127.0.0.1/callback?bar=foo` 3. Instead of an error, the browser is redirected to `http://127.0.0.1/callback?bar=foo` with a potentially successful OAuth2 response. as well as the host parameter (as long as the host is a loopback interface): 1. Registering a client with allowed redirect URL `https://example.com/callback` 2. Performing OAuth2 flow and requesting redirect URL `http://127.0.0.1/callback` 3. Instead of an error, the browser is redirected to `http://127.0.0.1/callback` with 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.
受影響套件(1)
- Go/github.com/ory/fosite>= 0.30.3, < 0.34.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | 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 |