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{"acknowledgement": "Red Hat would like to thank Kristian Klausen for reporting this issue.", "affected_release": [{"advisory": "RHSA-2021:2070", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7", "package": "keycloak", "product_name": "Red Hat Single Sign-On 7.4.7", "release_date": "2021-05-20T00:00:00Z"}, {"advisory": "RHSA-2021:2063", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el6", "package": "rh-sso7-keycloak-0:9.0.13-1.redhat_00006.1.el6sso", "product_name": "Red Hat Single Sign-On 7.4 for RHEL 6", "release_date": "2021-05-20T00:00:00Z"}, {"advisory": "RHSA-2021:2064", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el7", "package": "rh-sso7-keycloak-0:9.0.13-1.redhat_00006.1.el7sso", "product_name": "Red Hat Single Sign-On 7.4 for RHEL 7", "release_date": "2021-05-20T00:00:00Z"}, {"advisory": "RHSA-2021:2065", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el8", "package": "rh-sso7-keycloak-0:9.0.13-1.redhat_00006.1.el8sso", "product_name": "Red Hat Single Sign-On 7.4 for RHEL 8", "release_date": "2021-05-20T00:00:00Z"}], "bugzilla": {"description": "keycloak: Internationalized domain name (IDN) homograph attack to impersonate users", "id": "1933320", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1933320"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "status": "verified"}, "cwe": "CWE-287", "details": ["A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.", "A flaw was found in keycloak, where IDN homograph attacks are possible. This flaw allows a malicious user to register a name that already exists and then tricking an admin to grant extra privileges. The highest threat from this vulnerability is to integrity."], "name": "CVE-2021-3424", "package_state": [{"cpe": "cpe:/a:redhat:jboss_enterprise_brms_platform:7", "fix_state": "Not affected", "package_name": "keycloak", "product_name": "Red Hat Decision Manager 7"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Not affected", "package_name": "keycloak", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:integration:1", "fix_state": "Not affected", "package_name": "keycloak", "product_name": "Red Hat Integration Camel K 1"}, {"cpe": "cpe:/a:redhat:openshift_application_runtimes:1.0", "fix_state": "Not affected", "package_name": "keycloak", "product_name": "Red Hat OpenShift Application Runtimes"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_bpms_platform:7", "fix_state": "Not affected", "package_name": "keycloak", "product_name": "Red Hat Process Automation 7"}, {"cpe": "cpe:/a:redhat:openshift_application_runtimes:1.0", "fix_state": "Not affected", "package_name": "keycloak", "product_name": "Red Hat support for Spring Boot"}], "public_date": "2021-03-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-3424\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-3424\nhttps://github.com/keycloak/keycloak/security/advisories/GHSA-mwm4-5qwr-g9pf"], "threat_severity": "Low"}