CVE-2024-49369

CRITICALCVSS 9.8/10EPSS 2.93%

Last modified

CVE-2024-49369 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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). EPSS estimates a 2.93% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.93%

85.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
IcingaIcinga>= 2.4.0, < 2.11.12
IcingaIcinga>= 2.12.0, < 2.12.11
IcingaIcinga>= 2.13.0, < 2.13.10
IcingaIcinga>= 2.14.0, < 2.14.3
DebianDebian Linux11.0

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-49369?
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.
How severe is CVE-2024-49369?
CVE-2024-49369 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.93% probability of exploitation in the next 30 days.
How do I fix CVE-2024-49369?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-49369?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST