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9.8
CRITICAL CVSS 3.1
CVE-2024-49369
Icinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections
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.

INFO

Published Date :

Nov. 12, 2024, 5:15 p.m.

Last Modified :

Nov. 26, 2025, 1:01 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2024-49369 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Icinga icinga
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL [email protected]
Solution
This addresses a TLS certificate validation bypass vulnerability in Icinga 2.
  • Upgrade Icinga 2 to the latest version.
  • Update the affected packages.
Public PoC/Exploit Available at Github

CVE-2024-49369 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-49369.

URL Resource
https://github.com/Icinga/icinga2/commit/0419a2c36de408e9a703aec0962061ec9a285d3c Patch
https://github.com/Icinga/icinga2/commit/2febc5e18ae0c93d989e64ebc2a9fd90e7205ad8 Patch
https://github.com/Icinga/icinga2/commit/3504fc7ed688c10d86988e2029a65efc311393fe Patch
https://github.com/Icinga/icinga2/commit/869a7d6f0fe38c748e67bacc1fbdd42c933030f6 Patch
https://github.com/Icinga/icinga2/commit/8fed6608912c752b337d977f730547875a820831 Patch
https://github.com/Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpv Patch Vendor Advisory
https://icinga.com/blog/2024/11/12/critical-icinga-2-security-releases-2-14-3 Release Notes
https://lists.debian.org/debian-lts-announce/2024/11/msg00010.html Mailing List Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-49369 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-49369 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
Quantum-Sicarius/CVE-2024-49369

None

Dockerfile Python

Updated: 3 months, 3 weeks ago
2 stars 1 fork 1 watcher
Born at : Nov. 29, 2024, 8:14 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
EGI-Federation/SVG-advisories

Archived EGI SVG Advisories

Updated: 4 weeks ago
1 stars 1 fork 1 watcher
Born at : Oct. 8, 2021, 2:26 p.m. This repo has been linked 24 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-49369 vulnerability anywhere in the article.

  • Cybersecurity News
Zero-Day in Active Directory Certificate Services: Researcher Exposes CVE-2024-49019 with PoC

Security researchers from TrustedSec have uncovered a critical zero-day vulnerability, CVE-2024-49019, affecting Active Directory Certificate Services (AD CS). This flaw exploits a feature of version ... Read more

Published Date: Nov 29, 2024 (1 year ago)
  • Cybersecurity News
CVE-2024-8856: WP Time Capsule Plugin Vulnerability Exposes 20,000+ Sites to TakeOver

A high-severity vulnerability in WP Time Capsule, a popular WordPress backup plugin, has left over 20,000 websites vulnerable to complete takeover.Discovered by security researcher Rein Daelman, the f ... Read more

Published Date: Nov 17, 2024 (1 year, 1 month ago)
  • Cybersecurity News
CVE-2024-49369 (CVSS 9.8): Critical Flaw in Icinga 2 Allows for Impersonation and RCE

Icinga releases urgent security updates to address a critical TLS certificate validation bypass vulnerability affecting all versions since 2.4.0.A critical vulnerability (CVE-2024-49369) has been disc ... Read more

Published Date: Nov 16, 2024 (1 year, 1 month ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2024-49369 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Reanalysis by [email protected]

    Nov. 26, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  • Initial Analysis by [email protected]

    Nov. 26, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:* versions from (including) 2.12.0 up to (excluding) 2.12.11 *cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:* versions from (including) 2.13.0 up to (excluding) 2.13.10 *cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:* versions from (including) 2.14.0 up to (excluding) 2.14.3 *cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:* versions from (including) 2.4.0 up to (excluding) 2.11.12
    Added Reference Type GitHub, Inc.: https://github.com/Icinga/icinga2/commit/0419a2c36de408e9a703aec0962061ec9a285d3c Types: Patch
    Added Reference Type GitHub, Inc.: https://github.com/Icinga/icinga2/commit/2febc5e18ae0c93d989e64ebc2a9fd90e7205ad8 Types: Patch
    Added Reference Type GitHub, Inc.: https://github.com/Icinga/icinga2/commit/3504fc7ed688c10d86988e2029a65efc311393fe Types: Patch
    Added Reference Type GitHub, Inc.: https://github.com/Icinga/icinga2/commit/869a7d6f0fe38c748e67bacc1fbdd42c933030f6 Types: Patch
    Added Reference Type GitHub, Inc.: https://github.com/Icinga/icinga2/commit/8fed6608912c752b337d977f730547875a820831 Types: Patch
    Added Reference Type GitHub, Inc.: https://github.com/Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpv Types: Patch, Vendor Advisory
    Added Reference Type GitHub, Inc.: https://icinga.com/blog/2024/11/12/critical-icinga-2-security-releases-2-14-3 Types: Release Notes
    Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/11/msg00010.html Types: Mailing List, Third Party Advisory
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 03, 2025

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2024/11/msg00010.html
  • CVE Received by [email protected]

    Nov. 12, 2024

    Action Type Old Value New Value
    Added 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.
    Added Reference GitHub, Inc. https://github.com/Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpv [No types assigned]
    Added Reference GitHub, Inc. https://github.com/Icinga/icinga2/commit/0419a2c36de408e9a703aec0962061ec9a285d3c [No types assigned]
    Added Reference GitHub, Inc. https://github.com/Icinga/icinga2/commit/2febc5e18ae0c93d989e64ebc2a9fd90e7205ad8 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/Icinga/icinga2/commit/3504fc7ed688c10d86988e2029a65efc311393fe [No types assigned]
    Added Reference GitHub, Inc. https://github.com/Icinga/icinga2/commit/869a7d6f0fe38c748e67bacc1fbdd42c933030f6 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/Icinga/icinga2/commit/8fed6608912c752b337d977f730547875a820831 [No types assigned]
    Added Reference GitHub, Inc. https://icinga.com/blog/2024/11/12/critical-icinga-2-security-releases-2-14-3 [No types assigned]
    Added CWE GitHub, Inc. CWE-295
    Added CVSS V3.1 GitHub, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact