OAuth Authorization Privilege Escalation Vulnerability in TIBCO API Exchange Gateway

CVE-2019-11208 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

The authorization component of TIBCO Software Inc.'s TIBCO API Exchange Gateway, and TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric contains a vulnerability that theoretically processes OAuth authorization incorrectly, leading to potential escalation of privileges for the specific customer endpoint, when the implementation uses multiple scopes. This issue affects: TIBCO Software Inc.'s TIBCO API Exchange Gateway version 2.3.1 and prior versions, and TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric version 2.3.1 and prior versions.

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