Vulnerability Monitor

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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.

Published

2024-11-12T17:15:08.250

Last Modified

2025-11-26T13:01:15.760

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

Weaknesses

Type: Secondary
CWE-295

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	icinga	icinga	< 2.11.12	Yes
Application	icinga	icinga	< 2.12.11	Yes
Application	icinga	icinga	< 2.13.10	Yes
Application	icinga	icinga	< 2.14.3	Yes
Operating System	debian	debian_linux	11.0	Yes

References

https://github.com/Icinga/icinga2/commit/0419a2c36de408e9a703aec0962061ec9a285d3c Patch ([email protected])
https://github.com/Icinga/icinga2/commit/2febc5e18ae0c93d989e64ebc2a9fd90e7205ad8 Patch ([email protected])
https://github.com/Icinga/icinga2/commit/3504fc7ed688c10d86988e2029a65efc311393fe Patch ([email protected])
https://github.com/Icinga/icinga2/commit/869a7d6f0fe38c748e67bacc1fbdd42c933030f6 Patch ([email protected])
https://github.com/Icinga/icinga2/commit/8fed6608912c752b337d977f730547875a820831 Patch ([email protected])
https://github.com/Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpv Patch, Vendor Advisory ([email protected])
https://icinga.com/blog/2024/11/12/critical-icinga-2-security-releases-2-14-3 Release Notes ([email protected])
https://lists.debian.org/debian-lts-announce/2024/11/msg00010.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)