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Vulnerability · Published Apr 25, 2024 · Assigned by redhat

CVE-2023-3597Keycloak: secondary factor bypass in step-up authentication

Medium 5.0

In plain English

A medium-severity improper authentication in keycloak. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.0Medium
Exploit odds (30 days)0.6%top 51.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in Keycloak, where it does not correctly validate its client step-up authentication in org.keycloak.authentication. This flaw allows a remote user authenticated with a password to register a false second authentication factor along with an existing one and bypass authentication.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenorg.keycloak:keycloak-services22.0.10GHSA-4f53-xh3v-g8x4
Mavenorg.keycloak:keycloak-services24.0.3GHSA-4f53-xh3v-g8x4

Affected products (as reported)

VendorProductVersions
keycloak 0 – before 22.0.1023.0.0 – before 24.0.3
Red Hat Red Hat build of Keycloak 22 see references
Red Hat Red Hat build of Keycloak 22 see references
Red Hat Red Hat build of Keycloak 22 see references
Red Hat Red Hat build of Keycloak 22.0.10 see references
Red Hat RHSSO 7.6.8 see references

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

References