CVE-2019-11293 : Security Advisory and Response

Cloud Foundry UAA Release prior to v74.10.0 has a vulnerability where client_secret credentials are logged when set to DEBUG logging level, potentially exposing user credentials.

Understanding CVE-2019-11293

Cloud Foundry UAA Release versions prior to v74.10.0 have a security vulnerability that exposes user credentials when client_secret credentials are logged at the DEBUG logging level.

What is CVE-2019-11293?

This CVE refers to a vulnerability in Cloud Foundry UAA Release where sensitive information, such as user credentials, can be accessed by unauthorized users due to logging of client_secret credentials when set to DEBUG.

The Impact of CVE-2019-11293

CVSS Score: 8.8 (High)
Attack Vector: Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged

Technical Details of CVE-2019-11293

Cloud Foundry UAA Release vulnerability details.

Vulnerability Description

When the logging level is set to DEBUG, client_secret credentials are logged, potentially allowing unauthorized access to user credentials.

Affected Systems and Versions

Affected Product: UAA Release
Vendor: Cloud Foundry
Affected Versions: All versions prior to v74.10.0

Exploitation Mechanism

Unauthorized users can potentially access user credentials through the uaa.log file if authentication is provided using query parameters.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2019-11293.

Immediate Steps to Take

Upgrade Cloud Foundry UAA Release to version v74.10.0 or higher.
Avoid setting the logging level to DEBUG in production environments.

Long-Term Security Practices

Implement secure logging practices to avoid sensitive information exposure.
Regularly review and monitor log files for any unauthorized access.

Patching and Updates

Apply patches and updates provided by Cloud Foundry to address this vulnerability.