Home/CVE/A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is no
CVE

CVE-2021-3632

A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is no

A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.

HIGH · CVSS 7.5 EPSS 0.00503
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-287Improper Authentication
CWE-287Improper Authentication
▤

Affected Products & Versions

3
redhat keycloak< 15.1.0
redhat single sign-onall versions
redhat single sign-on>= 7.4 and < 7.4.9
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.keycloak:keycloak-core HIGH fixed in 15.1.0
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Aug 2022 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

4
rhsaRHSA-2021:3534Important
rhsaRHSA-2021:3528Moderate
rhsaRHSA-2021:3527Moderate
rhsaRHSA-2021:3529Moderate
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2021-3632Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1978196Issue TrackingVendor Advisory
https://github.com/keycloak/keycloak/commit/65480cb5a11630909c086f79d396004499fbd1e4PatchThird Party Advisory
https://github.com/keycloak/keycloak/pull/8203Issue TrackingPatchThird Party Advisory
https://issues.redhat.com/browse/KEYCLOAK-18500Permissions RequiredVendor Advisory
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