Description
A vulnerability was found in Keycloak. Expired OTP codes are still usable when using FreeOTP when the OTP token period is set to 30 seconds (default). Instead of expiring and deemed unusable around 30 seconds in, the tokens are valid for an additional 30 seconds totaling 1 minute. A one time passcode that is valid longer than its expiration time increases the attack window for malicious actors to abuse the system and compromise accounts. Additionally, it increases the attack surface because at any given time, two OTPs are valid.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
keycloak-core
Default version status: unaffected
0 to < 24.0.7affected25.0.0 to < 25.0.4affected
Red Hat Red Hat Build of Keycloak
Default version status: unaffected
Red Hat Red Hat build of Keycloak 24
Default version status: affected
24.0.7-4 to < *unaffected
Red Hat Red Hat build of Keycloak 24
Default version status: affected
24-16 to < *unaffected
Red Hat Red Hat build of Keycloak 24
Default version status: affected
24-16 to < *unaffected