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TI-2024-32957 Aliases CVE-2024-49369

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

Priority MEDIUM 54CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-295.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02939 87th percentileScored 2026-11-07
Fix Fixed icinga2 (Icinga): 2.11.12, 2.12.11, 2.13.10 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Icingaicinga22.4.0 to before 2.11.12; 2.12.0 to before 2.12.11; 2.13.0 to before 2.13.10; 2.14.0 to before 2.14.32.11.12, 2.12.11, 2.13.10, 2.14.3Patch availableCNA
  • icinga2 VendorIcinga Affected 2.4.0 to before 2.11.12; 2.12.0 to before 2.12.11; 2.13.0 to before 2.13.10; 2.14.0 to before 2.14.3 Fixed in 2.11.12, 2.12.11, 2.13.10, 2.14.3 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*2.4.0 to before 2.11.12; 2.12.0 to before 2.12.11; 2.13.0 to before 2.13.10; 2.14.0 to before 2.14.3VulnerableIcinga
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
  • cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:* Versions 2.4.0 to before 2.11.12; 2.12.0 to before 2.12.11; 2.13.0 to before 2.13.10; 2.14.0 to before 2.14.3 Vulnerable ·Icinga
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

  • Fix · CNA icinga2 (Icinga) Fixed in 2.11.12, 2.12.11, 2.13.10, 2.14.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-49369

References

Patch 6

Advisory 1

Other 1

  • TI-2024-16337 Icinga Director configuration is susceptible to Cross-Site Request Forgery CVSS 3.1HIGH 8.3
  • TI-2012-05060 Multiple stack-based buffer overflows in the get_history function in history.cgi in… CVSS 2.0HIGH 7.5
  • TI-2013-05840 Multiple off-by-one errors in Nagios Core 3.5.1, 4.0.2, and earlier, and Icinga before… CVSS 2.0MEDIUM 5.5
  • TI-2025-30428 Icinga 2 certificate renewal might incorrectly renew an invalid certificate CVSS 4.0CRITICAL 9.3
  • TI-2021-12411 Passwords used to access external services inadvertently exposed through API CVSS 3.1HIGH 8.8
  • TI-2020-17821 Icinga 2 v2.8.0 through v2.11.7 and v2.12.2 has an issue where revoked certificates due… CVSS 3.1CRITICAL 9.1
See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences