CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
48.2%
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(...)
. From tokenFromCache()
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.
Vendor | Product | Version | CPE |
---|---|---|---|
ory | oathkeeper | 0.38.0 | cpe:2.3:a:ory:oathkeeper:0.38.0:beta2:*:*:*:*:*:* |
ory | oathkeeper | 0.38.1 | cpe:2.3:a:ory:oathkeeper:0.38.1:beta2:*:*:*:*:*:* |
ory | oathkeeper | 0.38.2 | cpe:2.3:a:ory:oathkeeper:0.38.2:beta1:*:*:*:*:*:* |
ory | oathkeeper | 0.38.3 | cpe:2.3:a:ory:oathkeeper:0.38.3:beta1:*:*:*:*:*:* |
ory | oathkeeper | 0.38.4 | cpe:2.3:a:ory:oathkeeper:0.38.4:beta1:*:*:*:*:*:* |
ory | oathkeeper | 0.38.5 | cpe:2.3:a:ory:oathkeeper:0.38.5:beta1:*:*:*:*:*:* |
ory | oathkeeper | 0.38.6 | cpe:2.3:a:ory:oathkeeper:0.38.6:beta1:*:*:*:*:*:* |
ory | oathkeeper | 0.38.7 | cpe:2.3:a:ory:oathkeeper:0.38.7:beta1:*:*:*:*:*:* |
ory | oathkeeper | 0.38.8 | cpe:2.3:a:ory:oathkeeper:0.38.8:beta1:*:*:*:*:*:* |
ory | oathkeeper | 0.38.9 | cpe:2.3:a:ory:oathkeeper:0.38.9:beta1:*:*:*:*:*:* |
[
{
"product": "oathkeeper",
"vendor": "ory",
"versions": [
{
"status": "affected",
"version": ">=v0.38.0-beta.2, < v0.38.12-beta.1"
}
]
}
]
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
48.2%