ghsa-3qh5-qqj2-c78f
Vulnerability from github
Published
2023-06-30 20:31
Modified
2023-06-30 20:31
Severity
Summary
Keycloak vulnerable to Improper Client Certificate Validation for OAuth/OpenID clients
Details
When a Keycloak server is configured to support mTLS authentication for OAuth/OpenID clients, it does not properly verify the client certificate chain. A client that possesses a proper certificate can authorize itself as any other client and therefore access data that belongs to other clients.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.keycloak:keycloak-services"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "21.1.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-2422"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": true,
"github_reviewed_at": "2023-06-30T20:31:37Z",
"nvd_published_at": "2023-10-04T11:15:10Z",
"severity": "HIGH"
},
"details": "When a Keycloak server is configured to support mTLS authentication for OAuth/OpenID clients, it does not properly verify the client certificate chain. A client that possesses a proper certificate can authorize itself as any other client and therefore access data that belongs to other clients.",
"id": "GHSA-3qh5-qqj2-c78f",
"modified": "2023-06-30T20:31:37Z",
"published": "2023-06-30T20:31:37Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/keycloak/keycloak/security/advisories/GHSA-3qh5-qqj2-c78f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2422"
},
{
"type": "WEB",
"url": "https://github.com/keycloak/keycloak/commit/5c6c55945a384bfd82e51283096204dcb6f63d91"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:3883"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:3884"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:3885"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:3888"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:3892"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-2422"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2191668"
},
{
"type": "PACKAGE",
"url": "https://github.com/keycloak/keycloak"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "Keycloak vulnerable to Improper Client Certificate Validation for OAuth/OpenID clients"
}
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