CVE-2023-6787: Keycloak vulnerable to session hijacking via re-authentication
(updated )
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.
References
- access.redhat.com/errata/RHSA-2024:1867
- access.redhat.com/errata/RHSA-2024:1868
- access.redhat.com/security/cve/CVE-2023-6787
- bugzilla.redhat.com/show_bug.cgi?id=2254375
- github.com/advisories/GHSA-c9h6-v78w-52wj
- github.com/keycloak/keycloak
- github.com/keycloak/keycloak/security/advisories/GHSA-c9h6-v78w-52wj
- nvd.nist.gov/vuln/detail/CVE-2023-6787
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