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

What is CVE-2024-49369?

CVE-2024-49369 is a critical vulnerability in Debian Debian Linux, published on 12 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-295

Which versions are affected by CVE-2024-49369?

It affects 2 products.

Products include Debian Debian Linux, Icinga Icinga.

How do I fix CVE-2024-49369?

Upgrade to a fixed version.

Is CVE-2024-49369 being exploited?

There is no known exploitation of CVE-2024-49369 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2024-49369, GHSA-j7wq-r9mg-9wpv, UBUNTU-CVE-2024-49369, openSUSE-SU-2024:0371-1, openSUSE-SU-2024:0372-1, openSUSE-SU-2024:14493-1.