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Icinga 2.4.0 < 2.11.10, 2.12.0 < 2.12.5 Privilege Escalation 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 privilege escalation vulnerability.
Insight
Insight
A vulnerability exists that may allow privilege escalation for authenticated API users. With a read-only user's credentials, an attacker can view most attributes of all config objects including 'ticket_salt' of 'ApiListener'. This salt is enough to compute a ticket for every possible common name (CN). A ticket, the master node's certificate, and a self-signed certificate are enough to successfully request the desired certificate from Icinga. That certificate may in turn be used to steal an endpoint or API user's identity.
Affected Software
Affected Software
Icinga2 version 2.4.0 through 2.11.9 and 2.12.0 through 2.12.4.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 2.11.10, 2.12.5 or later.