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Date: May 10, 2021
JPA Server in HAPI FHIR before 5.4.0 allows a user to deny service (e.g., disable access to the database after the attack stops) via history requests. This occurs because of a SELECT COUNT statement that requires a full index scan, with an accompanying large amount of server resources if there are many simultaneous history requests.
Weakness Type (CWE)
Uncontrolled Resource Consumption ('Resource Exhaustion')CWE-400
Upgrade to version ca.uhn.hapi.fhir:hapi-fhir-jpaserver-api - 5.4.0
|Attack Vector (AV):||NETWORK|
|Attack Complexity (AC):||LOW|
|Privileges Required (PR):||NONE|
|User Interaction (UI):||NONE|
|Access Vector (AV):||NETWORK|
|Access Complexity (AC):||LOW|