CVE-2024-49369 – Icinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections

https://notcve.org/view.php?id=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. • https://github.com/Icinga/icinga2/commit/0419a2c36de408e9a703aec0962061ec9a285d3c https://github.com/Icinga/icinga2/commit/2febc5e18ae0c93d989e64ebc2a9fd90e7205ad8 https://github.com/Icinga/icinga2/commit/3504fc7ed688c10d86988e2029a65efc311393fe https://github.com/Icinga/icinga2/commit/869a7d6f0fe38c748e67bacc1fbdd42c933030f6 https://github.com/Icinga/icinga2/commit/8fed6608912c752b337d977f730547875a820831 https://github.com/Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpv https://icinga.com/blog/2024/11/12/critical-icinga-2-security-releases-2-14- • CWE-295: Improper Certificate Validation •