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Keycloak vulnerable to Improper Certificate Validation

Moderate severity GitHub Reviewed Published Aug 24, 2022 to the GitHub Advisory Database • Updated Jan 31, 2023

Package

maven org.keycloak:keycloak-core (Maven)

Affected versions

< 14.0.0

Patched versions

14.0.0

Description

keycloak accepts an expired certificate by the direct-grant authenticator because of missing time stamp validations. The highest threat from this vulnerability is to data confidentiality and integrity.

This issue was partially fixed in version 13.0.1 and more completely fixed in version 14.0.0.

References

Published by the National Vulnerability Database Aug 23, 2022
Published to the GitHub Advisory Database Aug 24, 2022
Reviewed Dec 5, 2022
Last updated Jan 31, 2023

Severity

Moderate
5.4
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weaknesses

CVE ID

CVE-2020-35509

GHSA ID

GHSA-rpj2-w6fr-79hc

Source code

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