CVE-2023-6787
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Redhat Keycloak
PublishedApr 25, 2024
First seenApr 25, 2024
Weakness typeCWE-287Improper authentication
How to fix
Update
- redhat keycloak22.0.10, 24.0.3 or later
- org.keycloak:keycloak-services22.0.10, 24.0.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat keycloak | v < 22.0.10, 23.0.0 ≤ v < 24.0.3 | 22.0.10, 24.0.3 |
| redhat build_of_keycloak | No range specified | — |
| org.keycloak:keycloak-servicesMaven | v < 22.0.10, 23.0.0 ≤ v < 24.0.3 | 22.0.10, 24.0.3 |
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