Security Advisory: Some users can execute selected operations beyond their authorizations
Date: 27. 02. 2024
Severity: 8.2 (High)
Affected versions: All midPoint versions prior to 4.4.8, 4.7.4, 4.8.2
Fixed in versions: 4.4.8, 4.7.4, 4.8.2
Description
Authorized REST users can inject false resource data into midPoint and invoke the import from resources without any further authorizations.
Severity and Impact
This is High Severity Issue.
Users with http://midpoint.evolveum.com/xml/ns/public/security/authorization-rest-3#all authorization can do the following:
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Invoke "notify change" operation. It allows them to provide false resource data to midPoint.
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Invoke "import from resource" operations. They allow them to start the import operations, either for a single shadow, or for the whole object class.
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Test the resource.
Mitigation
Users of affected MidPoint versions are advised to upgrade their deployments to the latest maintenance releases.
In the meantime, they are advised to allow REST access only to trusted users.
Note
As an additional security measure, the versions mentioned (4.4.8, 4.7.4, and 4.8.2) provide the ability to restrict REST users only to operations they are expected to invoke.
For example, if a user is expected to call only the "get object" operation via REST, now they can be given the specific http://midpoint.evolveum.com/xml/ns/public/security/authorization-rest-3#getObject authorization, instead of http://midpoint.evolveum.com/xml/ns/public/security/authorization-rest-3#all that was needed previously.
See also Service Authorizations.