Critical severity · published Nov 12, 2024
CVE-2024-49369
Icinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections
9.8
CVSS
2.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.9% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IC
icinga2 · Icinga
>= 2.4.0, < 2.11.12; >= 2.12.0, < 2.12.11; >= 2.13.0, < 2.13.10; >= 2.14.0, < 2.14.3 · source: vendor
DL
Debian Linux · Debian
11.0 · source: NVD
IC
Icinga · Icinga
2.4.0 before 2.11.12; 2.12.0 before 2.12.11; 2.13.0 before 2.13.10; 2.14.0 before 2.14.3 · source: NVD
IW
Icinga Web 2 · Icinga
2.4.0 before 2.11.12; 2.12.0 before 2.12.11; 2.13.0 before 2.13.10; 2.14.0 before 2.14.3 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-49369
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-49369
Patch
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
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