CVE-2021-37698highCWE-295

CVE-2021-37698: fallo de gravedad alta en icinga2

Missing TLS service certificate validation in GelfWriter, ElasticsearchWriter, InfluxdbWriter and Influxdb2Writer

Publicada el · Actualizada el

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 7.5epss 1.4%
probabilidad de explotación
1.4%top 29% de las CVE
explotación observada
noninguna fuente lo reporta
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Productos afectados
Icinga · icinga2
CVEs relacionadas — icinga2

En el mismo producto, de las más peligrosas a las menos.

CVE-2024-49369CRITICALIcinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API ConnectionsEPSS 2.9%CVE-2021-32743HIGHPasswords used to access external services inadvertently exposed through APIEPSS 1.8%CVE-2021-32739HIGHResults of queries for ApiListener objects include the ticket salt which allows in turn to steal (more privileged) identitiesEPSS 1.1%CVE-2026-61551HIGHIcinga 2: Stack overflow via deeply nested JSON objectsEPSS 0.9%CVE-2026-61552HIGHIcinga 2 DSL Injection via Unescaped Import Template NameEPSS 0.9%CVE-2026-61550CRITICALIcinga 2: Improper access control for JSON-RPC update certificate messagesEPSS 0.7%
Referencias
https://github.com/Icinga/icinga2/releases/tag/v2.11.11https://github.com/Icinga/icinga2/releases/tag/v2.12.6https://github.com/Icinga/icinga2/releases/tag/v2.13.1https://github.com/Icinga/icinga2/security/advisories/GHSA-cxfm-8j5v-5qr2https://lists.debian.org/debian-lts-announce/2021/11/msg00010.htmlhttps://lists.debian.org/debian-lts-announce/2024/11/msg00010.html