CVE-2024-49369

Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. The TLS certificate validation in all Icinga 2 versions starting from 2.4.0 was flawed, allowing an attacker to impersonate both trusted cluster nodes as well as any API users that use TLS client certificates for authentication (ApiUser objects with the client_cn attribute set). This vulnerability has been fixed in v2.14.3, v2.13.10, v2.12.11, and v2.11.12.

• CWE-295

• https://github.com/Icinga/icinga2/commit/0419a2c36de408e9a703aec0962061ec9a285d3cPatch
• https://github.com/Icinga/icinga2/commit/2febc5e18ae0c93d989e64ebc2a9fd90e7205ad8Patch
• https://github.com/Icinga/icinga2/commit/3504fc7ed688c10d86988e2029a65efc311393fePatch
• https://github.com/Icinga/icinga2/commit/869a7d6f0fe38c748e67bacc1fbdd42c933030f6Patch
• https://github.com/Icinga/icinga2/commit/8fed6608912c752b337d977f730547875a820831Patch
• https://github.com/Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpvPatch, Vendor Advisory
• https://icinga.com/blog/2024/11/12/critical-icinga-2-security-releases-2-14-3Release Notes
• https://lists.debian.org/debian-lts-announce/2024/11/msg00010.htmlMailing List, Third Party Advisory

Published

Nov 12, 2024

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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