CVE-2024-49369

Estado: AnalizadaCrítica (9.8)—

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

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 2.92%
Percentil entre todas las CVEs puntuadas: 87
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1557 Adversary-in-the-Middlecredential access · collection90 %
Impacto secundarioT1078 Valid Accountsstealth · persistence · privilege escalation · initial access85 %

Vulnerabilidad de validación TLS (CWE-295) en servicio remoto Icinga 2 accesible por red sin autenticación previa (AV:N/PR:N/UI:N). Permite suplantación de nodos y usuarios (T1557, T1078, T1098).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

User Training Privileged Account Management Network Segmentation Limit Access to Resource Over Network Filter Network Traffic Application Developer Guidance

Tecnologías afectadas (2)

Debian — Debian Linux Icinga — Icinga

CWE

CWE-295

Referencias

JSON original (NVD)

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