Description
A flaw was found in Keycloak version 8.0.2 and 9.0.0, and was fixed in Keycloak version 9.0.1, where a malicious user registers as oneself. The attacker could then use the remove devices form to post different credential IDs and possibly remove MFA devices for other users.
Remediation
References
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10686
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