Home/CVE/Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generat
CVE

CVE-2024-49369

Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generat

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.

CRITICAL · CVSS 9.8 EPSS 0.24074
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 4% of all CVEs by exploitation likelihood
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
▤

Affected Products & Versions

5
icinga>= 2.4.0 and < 2.11.12
icinga>= 2.12.0 and < 2.12.11
icinga>= 2.13.0 and < 2.13.10
icinga>= 2.14.0 and < 2.14.3
debian linuxall versions
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Nov 2024 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

3
suse-csafopenSUSE-SU-2024:0371-1
suse-csafopenSUSE-SU-2024:0372-1
suse-csafopenSUSE-SU-2024:14493-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/Icinga/icinga2/commit/0419a2c36de408e9a703aec0962061ec9a285d3cPatch
https://github.com/Icinga/icinga2/commit/2febc5e18ae0c93d989e64ebc2a9fd90e7205ad8Patch
https://github.com/Icinga/icinga2/commit/3504fc7ed688c10d86988e2029a65efc311393fePatch
https://github.com/Icinga/icinga2/commit/869a7d6f0fe38c748e67bacc1fbdd42c933030f6Patch
https://github.com/Icinga/icinga2/commit/8fed6608912c752b337d977f730547875a820831Patch
https://github.com/Icinga/icinga2/security/advisories/GHSA-j7wq-r9mg-9wpvPatchVendor Advisory
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