CVE-2019-11208 : Security Advisory and Response
Learn about CVE-2019-11208 affecting TIBCO API Exchange Gateway and TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric. Find out the impact, affected versions, and mitigation steps.
TIBCO Software Inc.'s authorization system in TIBCO API Exchange Gateway and TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric has a vulnerability that may result in the incorrect processing of OAuth authorization, potentially allowing for an escalation of privileges for a particular customer endpoint if multiple scopes are utilized.
Understanding CVE-2019-11208
This CVE involves a vulnerability in TIBCO API Exchange Gateway and TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric that could lead to an escalation of privileges due to incorrect OAuth authorization processing.
What is CVE-2019-11208?
The vulnerability in TIBCO Software Inc.'s authorization system may allow an attacker to gain unauthorized access to all scopes defined for a specific customer endpoint.
The Impact of CVE-2019-11208
The vulnerability could potentially lead to an escalation of privileges for a particular customer endpoint if multiple scopes are used.
Technical Details of CVE-2019-11208
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability involves the incorrect processing of OAuth authorization in TIBCO API Exchange Gateway and TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric.
Affected Systems and Versions
- TIBCO API Exchange Gateway version 2.3.1 and prior
- TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric version 2.3.1 and prior
Exploitation Mechanism
The vulnerability could be exploited by an attacker to potentially escalate privileges by manipulating OAuth authorization.
Mitigation and Prevention
To address CVE-2019-11208, follow these mitigation and prevention steps:
Immediate Steps to Take
- Update TIBCO API Exchange Gateway to version 2.3.2 or higher
- Update TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric to version 2.3.2 or higher
Long-Term Security Practices
- Regularly review and update authorization mechanisms
- Implement least privilege access controls
Patching and Updates
Ensure timely installation of security patches and updates provided by TIBCO to address this vulnerability.