Keycloak vulnerable to session hijacking via re-authentication

CAO 8.8CVE-2023-6787 · GHSA-c9h6-v78w-52wj · Công bố 25/04/2024 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2023-6787 là lỗ hổng mức CAO (CVSS 8.8) ảnh hưởng org.keycloak:keycloak-services, keycloak (redhat).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.74%, cao hơn 54.8% các lỗ hổng khác.
Cách xử lý: cập nhật lên 24.0.3, 22.0.10 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
org.keycloak:keycloak-services Maven	`≥ 23.0.0, < 24.0.3< 22.0.10`	`24.0.322.0.10`
keycloak redhat	`≥ 23.0.0, < 24.0.3< 22.0.10`	`24.0.322.0.10`

Mô tả

A flaw was found in Keycloak. An active keycloak session can be hijacked by initiating a new authentication (having the query parameter prompt=login) and forcing the user to enter his credentials once again. If the user cancels this re-authentication by clicking Restart login, the account takeover could take place as the new session, with a different SUB, will have the same SID as the previous session.

Mô tả của NVD

A flaw was found in Keycloak that occurs from an error in the re-authentication mechanism within org.keycloak.authentication. This flaw allows hijacking an active Keycloak session by triggering a new authentication process with the query parameter "prompt=login," prompting the user to re-enter their credentials. If the user cancels this re-authentication by selecting "Restart login," an account takeover may occur, as the new session, with a different SUB, will possess the same SID as the previous session.