Overview
- Description
- ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP requests based on sets of Access Rules. When you make a request to an endpoint that requires the scope `foo` using an access token granted with that `foo` scope, introspection will be valid and that token will be cached. The problem comes when a second requests to an endpoint that requires the scope `bar` is made before the cache has expired. Whether the token is granted or not to the `bar` scope, introspection will be valid. A patch will be released with `v0.38.12-beta.1`. Per default, caching is disabled for the `oauth2_introspection` authenticator. When caching is disabled, this vulnerability does not exist. The cache is checked in [`func (a *AuthenticatorOAuth2Introspection) Authenticate(...)`](https://github.com/ory/oathkeeper/blob/6a31df1c3779425e05db1c2a381166b087cb29a4/pipeline/authn/authenticator_oauth2_introspection.go#L152). From [`tokenFromCache()`](https://github.com/ory/oathkeeper/blob/6a31df1c3779425e05db1c2a381166b087cb29a4/pipeline/authn/authenticator_oauth2_introspection.go#L97) it seems that it only validates the token expiration date, but ignores whether the token has or not the proper scopes. The vulnerability was introduced in PR #424. During review, we failed to require appropriate test coverage by the submitter which is the primary reason that the vulnerability passed the review process.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 4.3
- Impact score
- 2.9
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
- security-advisories@github.com
- CWE-863
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.0:beta2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DC847085-1357-48B3-A809-78F964DE5469"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.1:beta2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8EE6201C-CC5D-4202-A0E1-6170ECD0A6A9"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.2:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C0BA2A9E-02E3-4F3B-BC57-139645995814"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.3:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "33B55094-713D-4DB0-948C-3A4BA060640C"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.4:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A78FF290-4F7A-4386-8802-DFBAD0A32725"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.5:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D212F091-4CC2-4E80-B68E-E77121F59FF3"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.6:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "524EFECB-F19D-4150-BAED-8303F12DC5D5"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.7:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4E7BE228-BE08-479F-B2F7-0CD44751D425"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.8:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "23B6E7B2-8865-4B7E-BF31-69F5AD03A817"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.9:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B790D997-23B1-4509-AE64-597F1BA287F0"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.10:beta2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "18DC4A21-2634-4ABE-8DCE-1CE7A056799A"
},
{
"criteria": "cpe:2.3:a:ory:oathkeeper:0.38.11:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A130449A-B114-4422-ABBE-83DB35C9679C"
}
],
"operator": "OR"
}
]
}
]