CVE-2024-49369criticalCWE-295

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

48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 9.8epss 2.9%

from disclosure to weapon17 days

Published on NVDNov 12

1st PoC+17d

exploitation probability

2.9%top 14% of all CVEs

observed exploitation

nono source reports it

1 public exploit(s)

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Icinga · icinga2

public PoCs found — 1

githubgithub.com/Quantum-Sicarius/CVE-2024-49369★ 2

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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