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{"acknowledgement": "This issue was discovered by Jeremy Choi (Red Hat).", "affected_release": [{"advisory": "RHSA-2020:0795", "cpe": "cpe:/a:redhat:openshift:3.11::el7", "package": "atomic-openshift-0:3.11.188-1.git.0.db0eaa8.el7", "product_name": "Red Hat OpenShift Container Platform 3.11", "release_date": "2020-03-20T00:00:00Z"}, {"advisory": "RHSA-2019:3722", "cpe": "cpe:/a:redhat:openshift:4.1::el7", "package": "openshift4/ose-hypershift:v4.1.22-201910291109", "product_name": "Red Hat OpenShift Container Platform 4.1", "release_date": "2019-11-07T00:00:00Z"}, {"advisory": "RHSA-2019:3770", "cpe": "cpe:/a:redhat:openshift:4.2::el7", "package": "openshift4/ose-oauth-server-rhel7:v4.2.4-201911050122", "product_name": "Red Hat OpenShift Container Platform 4.2", "release_date": "2019-11-13T00:00:00Z"}], "bugzilla": {"description": "atomic-openshift: reflected XSS in authentication flow", "id": "1693499", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1693499"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.6", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L", "status": "verified"}, "cwe": "CWE-79", "details": ["A reflected XSS vulnerability exists in authorization flow of OpenShift Container Platform versions: openshift-online-3, openshift-enterprise-3.4 through 3.7 and openshift-enterprise-3.9 through 3.11. An attacker could use this flaw to steal authorization data by getting them to click on a malicious link.", "A reflected XSS vulnerability exists in the authentication flow of the OpenShift Container Platform. An attacker could use this flaw to steal authentication data by having users click a malicious link."], "name": "CVE-2019-3889", "package_state": [{"cpe": "cpe:/a:redhat:openshift:3.10", "fix_state": "Fix deferred", "package_name": "atomic-openshift", "product_name": "Red Hat OpenShift Container Platform 3.10"}, {"cpe": "cpe:/a:redhat:openshift:3.4", "fix_state": "Will not fix", "package_name": "atomic-openshift", "product_name": "Red Hat OpenShift Container Platform 3.4"}, {"cpe": "cpe:/a:redhat:openshift:3.5", "fix_state": "Will not fix", "package_name": "atomic-openshift", "product_name": "Red Hat OpenShift Container Platform 3.5"}, {"cpe": "cpe:/a:redhat:openshift:3.6", "fix_state": "Out of support scope", "package_name": "atomic-openshift", "product_name": "Red Hat OpenShift Container Platform 3.6"}, {"cpe": "cpe:/a:redhat:openshift:3.7", "fix_state": "Out of support scope", "package_name": "atomic-openshift", "product_name": "Red Hat OpenShift Container Platform 3.7"}, {"cpe": "cpe:/a:redhat:openshift:3.9", "fix_state": "Fix deferred", "package_name": "atomic-openshift", "product_name": "Red Hat OpenShift Container Platform 3.9"}], "public_date": "2019-07-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-3889\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-3889"], "statement": "Since the HTTP Response \"Content Type\" is \"text/plain\" most browsers won't execute any Javascipt in the response content. However if an attacker can trick a user into loading the response in an iFrame it is possible to exploit this vulnerability. Appropriate Cross Origin Resource (CORS) Allowed Domain configuration in OCP 3 should prevent an attacker from getting any response from a attacker hosted domain. Therefore make sure that corsAllowedDomains is specified correctly in your OCP 3 master-config.yaml. See [1] for more details on an issue with corsAllowedDomains in OCP 3.\n[1] https://bugzilla.redhat.com/show_bug.cgi?id=1694913\nAlso content sniffing browsers [2] do execute Javascript even when the \"Content Type\" HTTP Response header is set to \"text/plain\".\n[2] https://en.wikipedia.org/wiki/Content_sniffing", "threat_severity": "Moderate"}