CVE-2020-14302 - Authentication Bypass by Capture-replay

Severity

49%

Complexity

12%

Confidentiality

60%

A flaw was found in Keycloak before 13.0.0 where an external identity provider, after successful authentication, redirects to a Keycloak endpoint that accepts multiple invocations with the use of the same "state" parameter. This flaw allows a malicious user to perform replay attacks.

CVSS 3.1 Base Score 4.9. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 4. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:S/C:N/I:P/A:N).

Overview

First reported 4 years ago

2020-12-15 20:15:00

Last updated 4 years ago

2020-12-18 16:19:00

Affected Software

Red Hat Keycloak

References

https://bugzilla.redhat.com/show_bug.cgi?id=1849584

https://bugzilla.redhat.com/show_bug.cgi?id=1849584

Issue Tracking, Vendor Advisory

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