CVE-2024-49369
9.8
CRITICAL · CVSS 3.1 · EPSS 2.9% (pctl 87)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.92% — more likely to be exploited than 87% of all CVEs |
| Weakness | CWE-295 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2024-11-12 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| debian | debian linux |
| icinga | icinga |
References
- 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-2-14-3
- https://lists.debian.org/debian-lts-announce/2024/11/msg00010.html
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