CVE-2019-18802

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Envoy 1.12.0. An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. Envoy will treat \"header-value \" as a different string from \"header-value\" so for example with the Host header \"example.com \" one could bypass \"example.com\" matchers."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-03-25T15:06:05.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/envoyproxy/envoy/commits/master"}, {"tags": ["x_refsource_MISC"], "url": "https://groups.google.com/forum/#%21forum/envoy-users"}, {"tags": ["x_refsource_MISC"], "url": "https://blog.envoyproxy.io"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4"}, {"name": "openSUSE-SU-2020:0379", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2019-18802", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An issue was discovered in Envoy 1.12.0. An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. Envoy will treat \"header-value \" as a different string from \"header-value\" so for example with the Host header \"example.com \" one could bypass \"example.com\" matchers."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/envoyproxy/envoy/commits/master", "refsource": "MISC", "url": "https://github.com/envoyproxy/envoy/commits/master"}, {"name": "https://groups.google.com/forum/#!forum/envoy-users", "refsource": "MISC", "url": "https://groups.google.com/forum/#!forum/envoy-users"}, {"name": "https://blog.envoyproxy.io", "refsource": "MISC", "url": "https://blog.envoyproxy.io"}, {"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4", "refsource": "MISC", "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4"}, {"name": "openSUSE-SU-2020:0379", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T02:02:39.625Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/envoyproxy/envoy/commits/master"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://groups.google.com/forum/#%21forum/envoy-users"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://blog.envoyproxy.io"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4"}, {"name": "openSUSE-SU-2020:0379", "tags": ["vendor-advisory", "x_refsource_SUSE", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2019-18802", "datePublished": "2019-12-13T12:21:26.000Z", "dateReserved": "2019-11-07T00:00:00.000Z", "dateUpdated": "2024-08-05T02:02:39.625Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "matchCriteriaId": "A9FE9447-DDAB-42A3-827A-DAB57328D902", "versionEndIncluding": "1.12.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Envoy 1.12.0. An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. Envoy will treat \"header-value \" as a different string from \"header-value\" so for example with the Host header \"example.com \" one could bypass \"example.com\" matchers."}, {"lang": "es", "value": "Se detect\u00f3 un problema en Envoy versi\u00f3n 1.12.0. Un cliente remoto no confiable puede enviar un encabezado HTTP (como Host) con espacios en blanco despu\u00e9s del contenido del encabezado. Envoy tratar\u00e1 el \"header-value \" como una cadena diferente del \"header-value\", de modo que, por ejemplo, con el encabezado Host \"example.com \" se podr\u00edan omitir los comparadores de \"example.com\"."}], "id": "CVE-2019-18802", "lastModified": "2026-06-17T02:25:21.857", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-12-13T13:15:11.383", "references": [{"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html"}, {"source": "cve@mitre.org", "tags": ["Product"], "url": "https://blog.envoyproxy.io"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "https://github.com/envoyproxy/envoy/commits/master"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4"}, {"source": "cve@mitre.org", "url": "https://groups.google.com/forum/#%21forum/envoy-users"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product"], "url": "https://blog.envoyproxy.io"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/envoyproxy/envoy/commits/master"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://groups.google.com/forum/#%21forum/envoy-users"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2019:4222", "cpe": "cpe:/a:redhat:service_mesh:1.0::el7", "package": "kiali-0:v1.0.8.redhat1-1.el7", "product_name": "Openshift Service Mesh 1.0", "release_date": "2019-12-11T00:00:00Z"}, {"advisory": "RHSA-2019:4222", "cpe": "cpe:/a:redhat:service_mesh:1.0::el8", "package": "servicemesh-0:1.0.3-1.el8", "product_name": "OpenShift Service Mesh 1.0", "release_date": "2019-12-11T00:00:00Z"}, {"advisory": "RHSA-2019:4222", "cpe": "cpe:/a:redhat:service_mesh:1.0::el8", "package": "servicemesh-cni-0:1.0.3-1.el8", "product_name": "OpenShift Service Mesh 1.0", "release_date": "2019-12-11T00:00:00Z"}, {"advisory": "RHSA-2019:4222", "cpe": "cpe:/a:redhat:service_mesh:1.0::el8", "package": "servicemesh-grafana-0:6.2.2-25.el8", "product_name": "OpenShift Service Mesh 1.0", "release_date": "2019-12-11T00:00:00Z"}, {"advisory": "RHSA-2019:4222", "cpe": "cpe:/a:redhat:service_mesh:1.0::el8", "package": "servicemesh-operator-0:1.0.3-1.el8", "product_name": "OpenShift Service Mesh 1.0", "release_date": "2019-12-11T00:00:00Z"}, {"advisory": "RHSA-2019:4222", "cpe": "cpe:/a:redhat:service_mesh:1.0::el8", "package": "servicemesh-prometheus-0:2.7.2-26.el8", "product_name": "OpenShift Service Mesh 1.0", "release_date": "2019-12-11T00:00:00Z"}, {"advisory": "RHSA-2019:4222", "cpe": "cpe:/a:redhat:service_mesh:1.0::el8", "package": "servicemesh-proxy-0:1.0.3-1.el8", "product_name": "OpenShift Service Mesh 1.0", "release_date": "2019-12-11T00:00:00Z"}], "bugzilla": {"description": "envoy: malformed request header may cause bypass of route matchers resulting in escalation of privileges or information disclosure", "id": "1773447", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1773447"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-284", "details": ["An issue was discovered in Envoy 1.12.0. An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. Envoy will treat \"header-value \" as a different string from \"header-value\" so for example with the Host header \"example.com \" one could bypass \"example.com\" matchers.", "A flaw was found in envoy. A malformed request header may cause route matchers or access controls to be bypassed, resulting in escalation of privileges or information disclosure. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."], "name": "CVE-2019-18802", "public_date": "2019-12-10T18:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-18802\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-18802\nhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4\nhttps://groups.google.com/forum/#!topic/envoy-users/m7z5fGkCzPI"], "threat_severity": "Important"}

{}