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Icinga 2.8.0 < 2.11.8, 2.12.2 < 2.12.3 CRL Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Icinga 2 is prone to a vulnerability where revoked certificates are automatically renewed ignoring the CRL.
Insight
Insight
Revoked certificates due for renewal will automatically be renewed ignoring the CRL. When a CRL is specified in the ApiListener configuration, Icinga 2 only used it when connections were established so far, but not when a certificate is requested. This allows a node to automatically renew a revoked certificate if it meets the other conditions for auto renewal (issued before 2017 or expires in less than 30 days). Because Icinga 2 currently uses a validity duration of 15 years, this only affects setups with external certificate signing and revoked certificates that expire in less then 30 days.
Affected Software
Affected Software
Icinga versions 2.8.0 - 2.11.7 and 2.12.2.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 2.11.8, 2.12.3 or later.