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{"acknowledgement": "Red Hat would like to thank Lauritz Holtmann (Chair for Network and Data Security at Ruhr University Bochum) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2020:4931", "cpe": "cpe:/a:redhat:jboss_single_sign_on:7.4", "product_name": "Red Hat Single Sign-On 7.4.3", "release_date": "2020-11-04T00:00:00Z"}, {"advisory": "RHSA-2020:4929", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el6", "package": "rh-sso7-keycloak-0:9.0.9-1.redhat_00001.1.el6sso", "product_name": "Red Hat Single Sign-On 7.4 for RHEL 6", "release_date": "2020-11-04T00:00:00Z"}, {"advisory": "RHSA-2020:4930", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el7", "package": "rh-sso7-keycloak-0:9.0.9-1.redhat_00001.1.el7sso", "product_name": "Red Hat Single Sign-On 7.4 for RHEL 7", "release_date": "2020-11-04T00:00:00Z"}, {"advisory": "RHSA-2020:4932", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el8", "package": "rh-sso7-keycloak-0:9.0.9-1.redhat_00001.1.el8sso", "product_name": "Red Hat Single Sign-On 7.4 for RHEL 8", "release_date": "2020-11-04T00:00:00Z"}, {"advisory": "RHSA-2020:4932", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el8", "package": "rh-sso7-libunix-dbus-java-0:0.8.0-2.el8sso", "product_name": "Red Hat Single Sign-On 7.4 for RHEL 8", "release_date": "2020-11-04T00:00:00Z"}], "bugzilla": {"description": "keycloak: OIDC redirect_uri allows dangerous schemes resulting in potential XSS", "id": "1847428", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1847428"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.0", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-79", "details": ["A flaw was found in Keycloak before version 12.0.0, where it is possible to add unsafe schemes for the redirect_uri parameter. This flaw allows an attacker to perform a Cross-site scripting attack.", "A flaw was found in Keycloak, where it is possible to add unsafe schemes for the redirect_uri parameter. This flaw allows an attacker to perform a Cross-site scripting attack."], "mitigation": {"lang": "en:us", "value": "Trusted Hosts Policy could be used to mitigate this attack : \nhttps://www.keycloak.org/docs/latest/securing_apps/index.html#client-registration-policies"}, "name": "CVE-2020-10776", "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: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": "2020-11-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-10776\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-10776"], "threat_severity": "Low"}