CVE-2021-37698 (GCVE-0-2021-37698)
Vulnerability from cvelistv5
Published
2021-08-19 13:55
Modified
2024-08-04 01:23
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS score ?
0.11% (0.30036)
Summary
Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. In versions 2.5.0 through 2.13.0, ElasticsearchWriter, GelfWriter, InfluxdbWriter and Influxdb2Writer do not verify the server's certificate despite a certificate authority being specified. Icinga 2 instances which connect to any of the mentioned time series databases (TSDBs) using TLS over a spoofable infrastructure should immediately upgrade to version 2.13.1, 2.12.6, or 2.11.11 to patch the issue. Such instances should also change the credentials (if any) used by the TSDB writer feature to authenticate against the TSDB. There are no workarounds aside from upgrading.
References
security-advisories@github.comhttps://github.com/Icinga/icinga2/releases/tag/v2.11.11Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/Icinga/icinga2/releases/tag/v2.12.6Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/Icinga/icinga2/releases/tag/v2.13.1Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/Icinga/icinga2/security/advisories/GHSA-cxfm-8j5v-5qr2Third Party Advisory
security-advisories@github.comhttps://lists.debian.org/debian-lts-announce/2021/11/msg00010.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/Icinga/icinga2/releases/tag/v2.11.11Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/Icinga/icinga2/releases/tag/v2.12.6Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/Icinga/icinga2/releases/tag/v2.13.1Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/Icinga/icinga2/security/advisories/GHSA-cxfm-8j5v-5qr2Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/11/msg00010.htmlMailing List, Third Party Advisory
Impacted products
Vendor Product Version
Icinga icinga2 Version: >= 2.5.0, <= 2.13.0
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      nvd: "{\"cve\":{\"id\":\"CVE-2021-37698\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2021-08-19T16:15:12.420\",\"lastModified\":\"2024-11-21T06:15:43.943\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. In versions 2.5.0 through 2.13.0, ElasticsearchWriter, GelfWriter, InfluxdbWriter and Influxdb2Writer do not verify the server's certificate despite a certificate authority being specified. Icinga 2 instances which connect to any of the mentioned time series databases (TSDBs) using TLS over a spoofable infrastructure should immediately upgrade to version 2.13.1, 2.12.6, or 2.11.11 to patch the issue. Such instances should also change the credentials (if any) used by the TSDB writer feature to authenticate against the TSDB. There are no workarounds aside from upgrading.\"},{\"lang\":\"es\",\"value\":\"Icinga es un sistema de monitorización que comprueba la disponibilidad de los recursos de red, notifica a usuarios de las interrupciones y genera datos de rendimiento para la elaboración de informes. En las versiones 2.5.0 a 2.13.0, los parámetros ElasticsearchWriter, GelfWriter, InfluxdbWriter e Influxdb2Writer no verifican el certificado del servidor a pesar de que se haya especificado una autoridad de certificación. Las instancias de Icinga 2 que se conectan a cualquiera de las bases de datos de series temporales (TSDB) mencionadas usando TLS sobre una infraestructura falsificable deben actualizar inmediatamente a versiones 2.13.1, 2.12.6 o 2.11.11 para solucionar el problema. Dichas instancias también deben cambiar las credenciales (si las presenta) usadas por la funcionalidad TSDB writer para autenticarse contra la TSDB. No se presentan soluciones aparte de la actualización.\"}],\"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:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"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:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"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:P/I:N/A:N\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"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-295\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-295\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.5.0\",\"versionEndExcluding\":\"2.11.10\",\"matchCriteriaId\":\"F3D2866E-53F4-4990-92EA-B9234946CED9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.12.0\",\"versionEndExcluding\":\"2.12.6\",\"matchCriteriaId\":\"5AD97DAA-C4A6-4BC2-BD67-9F3D038C2B05\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.13.0\",\"versionEndExcluding\":\"2.13.1\",\"matchCriteriaId\":\"1D1FD0A6-747B-4A8E-A130-0BE3C20AECA0\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"}]}]}],\"references\":[{\"url\":\"https://github.com/Icinga/icinga2/releases/tag/v2.11.11\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/Icinga/icinga2/releases/tag/v2.12.6\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/Icinga/icinga2/releases/tag/v2.13.1\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/Icinga/icinga2/security/advisories/GHSA-cxfm-8j5v-5qr2\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/11/msg00010.html\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/Icinga/icinga2/releases/tag/v2.11.11\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/Icinga/icinga2/releases/tag/v2.12.6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/Icinga/icinga2/releases/tag/v2.13.1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/Icinga/icinga2/security/advisories/GHSA-cxfm-8j5v-5qr2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2021/11/msg00010.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}",
   },
}


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UUIDv4 of the Vulnerability-Lookup instance
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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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  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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