cve-2019-18802
Vulnerability from cvelistv5
Published
2019-12-13 12:21
Modified
2024-08-05 02:02
Severity ?
EPSS score ?
Summary
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.
References
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An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. 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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\\\".\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\",\"baseScore\":7.5},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"1.12.1\",\"matchCriteriaId\":\"A9FE9447-DDAB-42A3-827A-DAB57328D902\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://blog.envoyproxy.io\",\"source\":\"cve@mitre.org\",\"tags\":[\"Product\"]},{\"url\":\"https://github.com/envoyproxy/envoy/commits/master\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/forum/#%21forum/envoy-users\",\"source\":\"cve@mitre.org\"}]}}" } }
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Sightings
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.