{
  "threat_severity" : "Important",
  "public_date" : "2023-03-01T13:56:00Z",
  "bugzilla" : {
    "description" : "keycloak: reflected XSS attack",
    "id" : "2148496",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2148496"
  },
  "cvss3" : {
    "cvss3_base_score" : "8.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-81",
  "details" : [ "A reflected cross-site scripting (XSS) vulnerability was found in the 'oob' OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page. This flaw requires a user or administrator to interact with a link in order to be vulnerable. This may compromise user details, allowing it to be changed or collected by an attacker.", "A reflected cross-site scripting (XSS) vulnerability was found in the 'oob' OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page. This flaw requires a user or administrator to interact with a link in order to be vulnerable. This may compromise user details, allowing it to be changed or collected by an attacker." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Single Sign-On 7",
    "release_date" : "2023-03-01T00:00:00Z",
    "advisory" : "RHSA-2023:1049",
    "cpe" : "cpe:/a:redhat:red_hat_single_sign_on:7.6"
  }, {
    "product_name" : "Red Hat Single Sign-On 7.6 for RHEL 7",
    "release_date" : "2023-03-01T00:00:00Z",
    "advisory" : "RHSA-2023:1043",
    "cpe" : "cpe:/a:redhat:red_hat_single_sign_on:7.6::el7",
    "package" : "rh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el7sso"
  }, {
    "product_name" : "Red Hat Single Sign-On 7.6 for RHEL 8",
    "release_date" : "2023-03-01T00:00:00Z",
    "advisory" : "RHSA-2023:1044",
    "cpe" : "cpe:/a:redhat:red_hat_single_sign_on:7.6::el8",
    "package" : "rh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el8sso"
  }, {
    "product_name" : "Red Hat Single Sign-On 7.6 for RHEL 9",
    "release_date" : "2023-03-01T00:00:00Z",
    "advisory" : "RHSA-2023:1045",
    "cpe" : "cpe:/a:redhat:red_hat_single_sign_on:7.6::el9",
    "package" : "rh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el9sso"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-4137\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-4137" ],
  "name" : "CVE-2022-4137",
  "csaw" : false
}