CVE-2023-3597
Keycloak secondary factor bypass in step-up authentication
5.0
MEDIUM
CVSS 3.1
EPSS 0.09%
Description
Keycloak does not correctly validate its client step-up authentication. A password-authed attacker could use this flaw to register a false second auth factor, alongside the existing one, to a targeted account. The second factor then permits step-up authentication.
How to fix CVE-2023-3597
To remediate CVE-2023-3597, upgrade the affected package to a fixed version below.
- —upgrade to 22.0.10 or later
Is CVE-2023-3597 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 22.0.10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.0 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L |