Описание
A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect (OIDC) token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other resource servers, compromising the confidentiality of lightweight access tokens. This issue can be exploited remotely by any confidential client in the realm with valid credentials.
Отчет
Moderate impact: Keycloak's OIDC token introspection endpoint fails to enforce audience validation, allowing a confidential client to retrieve sensitive token claims intended for a different audience. This compromises the confidentiality of lightweight tokens within Red Hat Build of Keycloak.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect (OIDC) token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other resource servers, compromising the confidentiality of lightweight access tokens. This issue can be exploited remotely by any confidential client in the realm with valid credentials.
A flaw was found in Keycloak. This access control vulnerability in Key ...
Keycloak: Information disclosure via OIDC token introspection endpoint audience bypass
EPSS
6.5 Medium
CVSS3