CVE-2019-14837
First published: Tue Jul 16 2019(Updated: )
A flaw was found in keycloack before version 8.0.0. The owner of 'placeholder.org' domain can setup mail server on this domain and knowing only name of a client can reset password and then log in. For example, for client name 'test' the email address will be 'service-account-test' Upstream issue: <a href="https://issues.jboss.org/browse/KEYCLOAK-10780">https://issues.jboss.org/browse/KEYCLOAK-10780</a> Upstream patch: <a href="https://github.com/keycloak/keycloak/commit/9a7c1a91a59ab85e7f8889a505be04a71580777f">https://github.com/keycloak/keycloak/commit/9a7c1a91a59ab85e7f8889a505be04a71580777f</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/rh-sso7-keycloak | <0:4.8.15-1.Final_redhat_00001.1.el6 | 0:4.8.15-1.Final_redhat_00001.1.el6 |
| redhat/rh-sso7-keycloak | <0:4.8.15-1.Final_redhat_00001.1.el7 | 0:4.8.15-1.Final_redhat_00001.1.el7 |
| redhat/rh-sso7-keycloak | <0:4.8.15-1.Final_redhat_00001.1.el8 | 0:4.8.15-1.Final_redhat_00001.1.el8 |
| maven/org.keycloak:keycloak-core | <8.0.0 | 8.0.0 |
| Red Hat Keycloak | <8.0.0 | |
| Red Hat Single Sign-On | =7.3 |
Remedy
It is not a very straight forward workaround but it is possible to mitigate this by manually editing the default Email ID (service_account_name@placeholder.org) to some valid email ID (abc@gmail.com) in the USER_ENTITY table in the RHSSO database used.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2019-14837 https://nvd.nist.gov/vuln/detail/CVE-2019-14837
- https://bugzilla.redhat.com/show_bug.cgi?id=1730227
- https://access.redhat.com/errata/RHSA-2019:4045
- https://access.redhat.com/errata/RHSA-2019:4040
- https://access.redhat.com/errata/RHSA-2019:4041
- https://access.redhat.com/errata/RHSA-2019:4042
- https://access.redhat.com/security/cve/cve-2019-14837
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14837
- https://github.com/keycloak/keycloak/commit/9a7c1a91a59ab85e7f8889a505be04a71580777f
- https://issues.jboss.org/browse/KEYCLOAK-10780
- https://nvd.nist.gov/vuln/detail/CVE-2019-14837
- https://github.com/advisories/GHSA-cf8f-w2c5-p5jr (Advisory)
- https://planet.jboss.org/post/service_accounts_support_in_keycloak
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1614803
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1614803&action=edit
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2019-14837?
CVE-2019-14837 is rated as a high severity vulnerability due to the potential for password reset exploitation.
How do I fix CVE-2019-14837?
To remediate CVE-2019-14837, upgrade to Keycloak version 8.0.0 or later, or update to the patched versions provided by Red Hat.
Which versions of Keycloak are affected by CVE-2019-14837?
CVE-2019-14837 affects Keycloak versions prior to 8.0.0, including specific Red Hat distributions before version 4.8.15-1.
What kind of attack does CVE-2019-14837 allow?
CVE-2019-14837 allows an attacker with knowledge of a client name to reset passwords and gain unauthorized access to accounts.
Is there a known workaround for CVE-2019-14837?
There are no known workarounds for CVE-2019-14837, so updating to a secure version is necessary.
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