title: TIBCO API Exchange Processes OAuth Incorrectly
description: 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.
problem types: The impact of this vulnerability includes the theoretical possibility that an attacker could gain access to all scopes defined for a given customer endpoint.
affected:
{
product: TIBCO API Exchange Gateway
vendor: TIBCO Software Inc.
versions:
status: affected, version: 2.3.1 and prior
}
{
product: TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric
vendor: TIBCO Software Inc.
versions:
status: affected, version: 2.3.1 and prior
}
metrics:
cvssV3_0: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 6.4
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: LOW
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
version: 3.0
]
solutions: TIBCO has released updated versions of the affected systems which address these issues.
TIBCO API Exchange Gateway versions 2.3.1 and below update to version 2.3.2 or higher
TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric versions 2.3.1 and below update to version 2.3.2 or higher