{ "id": "CVE-2022-21698", "sourceIdentifier": "security-advisories@github.com", "published": "2022-02-15T16:15:08.527", "lastModified": "2024-11-21T06:45:15.423", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP servers and clients. In client_golang prior to version 1.11.1, HTTP server is susceptible to a Denial of Service through unbounded cardinality, and potential memory exhaustion, when handling requests with non-standard HTTP methods. In order to be affected, an instrumented software must use any of `promhttp.InstrumentHandler*` middleware except `RequestsInFlight`; not filter any specific methods (e.g GET) before middleware; pass metric with `method` label name to our middleware; and not have any firewall/LB/proxy that filters away requests with unknown `method`. client_golang version 1.11.1 contains a patch for this issue. Several workarounds are available, including removing the `method` label name from counter/gauge used in the InstrumentHandler; turning off affected promhttp handlers; adding custom middleware before promhttp handler that will sanitize the request method given by Go http.Request; and using a reverse proxy or web application firewall, configured to only allow a limited set of methods." }, { "lang": "es", "value": "client_golang es la biblioteca de instrumentaci\u00f3n para aplicaciones Go en Prometheus, y el paquete promhttp en client_golang proporciona herramientas en torno a los servidores y clientes HTTP. En client_golang versiones anteriores a 1.11.1, el servidor HTTP es susceptible de una Denegaci\u00f3n de Servicio mediante una cardinalidad no limitada, y un potencial agotamiento de la memoria, cuando es manejado peticiones con m\u00e9todos HTTP no est\u00e1ndar. Para ser afectado, un software instrumentado debe usar cualquiera de los middleware \"promhttp.InstrumentHandler*\" excepto \"RequestsInFlight\"; no filtrar ning\u00fan m\u00e9todo espec\u00edfico (por ejemplo GET) antes del middleware; pasar la m\u00e9trica con el nombre de la etiqueta \"method\" a nuestro middleware; y no presentar ning\u00fan firewall/LB/proxy que filtre las peticiones con \"method\" desconocido. client_golang versi\u00f3n 1.11.1 contiene un parche para este problema. Se presentan varias medidas de mitigaci\u00f3n disponibles, incluyendo la eliminaci\u00f3n del nombre de la etiqueta \"method\" del contador/calibre usado en el InstrumentHandler; la deshabilitaci\u00f3n de los manejadores promhttp afectados; la adici\u00f3n de un middleware personalizado antes del manejador promhttp que sanee el m\u00e9todo de petici\u00f3n dado por Go http.Request; y el uso de un proxy inverso o un firewall de aplicaciones web, configurado para permitir s\u00f3lo un conjunto limitado de m\u00e9todos" } ], "metrics": { "cvssMetricV31": [ { "source": "security-advisories@github.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 3.6 }, { "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:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "baseScore": 5.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL" }, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "security-advisories@github.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-400" } ] }, { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-770" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:prometheus:client_golang:*:*:*:*:*:go:*:*", "versionEndExcluding": "1.11.1", "matchCriteriaId": "6772711E-70E4-4663-A81B-960CFE7BB586" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835" }, { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*", "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA" }, { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*", "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "3D9C7598-4BB4-442A-86DF-EEDE041A4CC7" }, { "vulnerable": true, "criteria": "cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "BB176AC3-3CDA-4DDA-9089-C67B2F73AA62" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:rdo_project:rdo:-:*:*:*:*:*:*:*", "matchCriteriaId": "B26CA9A7-9E1A-4787-89FB-2653E177895A" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*", "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA" }, { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*", "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD" }, { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*", "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D" } ] } ] } ], "references": [ { "url": "https://github.com/prometheus/client_golang/pull/962", "source": "security-advisories@github.com", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/prometheus/client_golang/pull/987", "source": "security-advisories@github.com", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/prometheus/client_golang/releases/tag/v1.11.1", "source": "security-advisories@github.com", "tags": [ "Release Notes", "Third Party Advisory" ] }, { "url": "https://github.com/prometheus/client_golang/security/advisories/GHSA-cg3q-j54f-5p7p", "source": "security-advisories@github.com", "tags": [ "Issue Tracking", "Third Party Advisory" ] }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2IK53GWZ475OQ6ENABKMJMTOBZG6LXUR/", "source": "security-advisories@github.com" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2PFW6Q2LXXWTFRTMTRN4ZGADFRQPKJ3D/", "source": "security-advisories@github.com" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36GUEPA5TPSC57DZTPYPBL6T7UPQ2FRH/", "source": "security-advisories@github.com" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3L6GDN5S5QZSCFKWD3GKL2RDZQ6B4UWA/", "source": "security-advisories@github.com" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KDETHL5XCT6RZN2BBNOCEXRZ2W3SFU3/", "source": "security-advisories@github.com" }, { "url": 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