Improper Authorization

2023-07-0110:58:45

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

vulnerability

keycloak

improper authorization

oauth

spoofing

device flow

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS

0.001

Percentile

38.1%

JSON

org.keycloak:keycloak-server-spi-private and org.keycloak:keycloak-services are vulnerable to Improper Authorization. The vulnerability exists under certain pre-conditions which allows an attacker to bypass authentication mechanisms via retrieving an access token for other OAuth clients, by using a device_code which was acquired through spoof parts of the device flow.