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.
{
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:redhat:single_sign-on:7.2:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "7.2"
},
{
"last_affected": "7.2"
}
],
"source": "CPE_STRING",
"vendor_product": "redhat:single_sign-on"
}
]
}