CVE-2024-49369

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.

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CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-295 CWE-295

Affected Products

Vendor	Product	Versions
icinga	icinga	2.4.0 — 2.11.12
icinga	icinga	2.12.0 — 2.12.11
icinga	icinga	2.13.0 — 2.13.10
icinga	icinga	2.14.0 — 2.14.3
debian	debian_linux	All

References

Advisories & Patches

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

Other References

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

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-49369? +

CVE-2024-49369 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-49369? +

CVE-2024-49369 affects products from debian, icinga, specifically: debian_linux, icinga. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-49369? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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