CVE-2018-10894
First published: Mon Jul 09 2018(Updated: )
It was found that SAML authentication in Keycloak 3.4.3.Final incorrectly authenticated expired certificates. A malicious user could use this to access unauthorized data or possibly conduct further attacks.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| maven/org.keycloak:keycloak-services | <4.4.0.Final | 4.4.0.Final |
| maven/org.keycloak:keycloak-saml-adapter-core | <4.4.0.Final | 4.4.0.Final |
| redhat/keycloak | <4.4.0. | 4.4.0. |
| Red Hat Keycloak | =3.4.3 | |
| Red Hat Single Sign-On | =7.2 | |
| Red Hat Enterprise Linux | =6.0 | |
| Red Hat Enterprise Linux | =7.0 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2018-10894
- https://access.redhat.com/errata/RHSA-2018:3592
- https://access.redhat.com/errata/RHSA-2018:3593
- https://access.redhat.com/errata/RHSA-2018:3595
- https://access.redhat.com/errata/RHSA-2019:0877
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10894
- https://github.com/keycloak/keycloak/commit/812e76c39b1e693e8f11e5549cca2c90631f372e
- https://github.com/advisories/GHSA-xvv8-8wh9-9fh2 (Advisory)
- https://issues.jboss.org/secure/attachment/12439846/0001-KEYCLOAK-8163-Improve-SAML-validations.patch
- https://issues.jboss.org/browse/KEYCLOAK-8163
- https://access.redhat.com/support/policy/updates/rhmap
- https://bugzilla.redhat.com/show_bug.cgi?id=1599434
Frequently Asked Questions
What is the severity of CVE-2018-10894?
CVE-2018-10894 has a high severity rating due to its potential to allow unauthorized access through expired certificates.
How do I fix CVE-2018-10894?
To fix CVE-2018-10894, upgrade to Keycloak version 4.4.0.Final or later.
What systems are affected by CVE-2018-10894?
CVE-2018-10894 affects Keycloak versions prior to 4.4.0.Final.
Can CVE-2018-10894 lead to data breaches?
Yes, CVE-2018-10894 can allow a malicious user to access unauthorized data.
Is there a workaround for CVE-2018-10894?
There are no known workarounds for CVE-2018-10894; upgrading is the recommended solution.
- collector/github-advisory-latest
- alias/GHSA-xvv8-8wh9-9fh2
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- canonical/red hat single sign-on
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- canonical/red hat enterprise linux
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- version/red hat enterprise linux/7.0