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Revoked certificates due for renewal will automatically be renewed ignoring the CRL

Low
N-o-X published GHSA-pcmr-2p2f-r7j6 Dec 15, 2020

Package

No package listed

Affected versions

v2.8.0 through v2.11.7 and v2.12.2

Patched versions

v2.11.8 and v2.12.3

Description

Impact

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 (v2.12.3 and earlier) 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.

Severity

Low

CVE ID

CVE-2020-29663

Weaknesses

No CWEs