CVE-2020-1694 Incorrect Permission Assignment for Critical Resource and Permissive List of Allowed Inputs in Keycloak
Keycloak NodeJS adapter fails to verify token audience, allowing users to access sensitive information outside their permissions.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-1694?
CVE-2020-1694 is a medium-severity missing authorization vulnerability in Redhat Keycloak, published on 16 Sep 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw was found in all versions of Keycloak before 10.0.0, where the NodeJS adapter did not support the verify-token-audience. This flaw results in some users having access to sensitive information outside of their permissions.
Which versions are affected by CVE-2020-1694?
2 open source packages ship an affected version, including org.keycloak:keycloak-parent. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.keycloak:keycloak-parent Maven | All versions | 10.0.0 |
org.keycloak:keycloak-parent Maven | All versions | 10.0.0 |
Products include Redhat Keycloak.
How do I fix CVE-2020-1694?
Upgrade org.keycloak:keycloak-parent to 10.0.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-1694 being exploited?
There is no known exploitation of CVE-2020-1694 in the wild and no public exploit code.
Other vulnerabilities in Redhat Keycloak
- CVE-2022-4361 Keycloak vulnerable to cross-site scripting when validating URI-schemes on SAML and OIDC
- CVE-2022-1245 Keycloak vulnerable to privilege escalation on Token Exchange feature
- CVE-2021-20195 keycloak Self Stored Cross-site Scripting vulnerability
- CVE-2019-14910 Keycloak Authentication Error
- CVE-2019-14909 Keycloak Authentication Error
Sources
Also known as GHSA-72j4-94rx-cr6w.