{
  "threat_severity" : "Low",
  "public_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"
  },
  "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." ],
  "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" : [ {
    "product_name" : "Red Hat Single Sign-On 7.4.3",
    "release_date" : "2020-11-04T00:00:00Z",
    "advisory" : "RHSA-2020:4931",
    "cpe" : "cpe:/a:redhat:jboss_single_sign_on:7.4"
  }, {
    "product_name" : "Red Hat Single Sign-On 7.4 for RHEL 6",
    "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 7",
    "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 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-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"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Decision Manager 7",
    "fix_state" : "Not affected",
    "package_name" : "keycloak",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_brms_platform:7"
  }, {
    "product_name" : "Red Hat Fuse 7",
    "fix_state" : "Not affected",
    "package_name" : "keycloak",
    "cpe" : "cpe:/a:redhat:jboss_fuse:7"
  }, {
    "product_name" : "Red Hat OpenShift Application Runtimes",
    "fix_state" : "Not affected",
    "package_name" : "keycloak",
    "cpe" : "cpe:/a:redhat:openshift_application_runtimes:1.0"
  }, {
    "product_name" : "Red Hat Process Automation 7",
    "fix_state" : "Not affected",
    "package_name" : "keycloak",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_bpms_platform:7"
  }, {
    "product_name" : "Red Hat support for Spring Boot",
    "fix_state" : "Not affected",
    "package_name" : "keycloak",
    "cpe" : "cpe:/a:redhat:openshift_application_runtimes:1.0"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2020-10776\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-10776" ],
  "name" : "CVE-2020-10776",
  "mitigation" : {
    "value" : "Trusted Hosts Policy could be used to mitigate this attack : \nhttps://www.keycloak.org/docs/latest/securing_apps/index.html#client-registration-policies",
    "lang" : "en:us"
  },
  "csaw" : false
}