Cloud Foundry UAA CVE-2019-11279 Privilege Escalation Vulnerability

Description

Cloud Foundry UAA is prone to a privilege-escalation vulnerability. An attacker can exploit this issue to to gain elevated privileges. Versions prior to Cloud Foundry UAA 74.1.0 are vulnerable.

Technologies Affected

• Pivotal Cloud Foundry UAA 60.0
• Pivotal Cloud Foundry UAA 61.0
• Pivotal Cloud Foundry UAA 62.0
• Pivotal Cloud Foundry UAA 63.0
• Pivotal Cloud Foundry UAA 64.0
• Pivotal Cloud Foundry UAA 66.0
• Pivotal Cloud Foundry UAA 70.0
• Pivotal Cloud Foundry UAA 73.3.0
• Pivotal Cloud Foundry UAA 73.7.0
• Pivotal Cloud Foundry UAA 74.0.0

Recommendations

Block external access at the network boundary, unless external parties require service.
If possible, block access to the server at the network perimeter. Allow only trusted computers and networks to have access to the resources.

Run all software as a nonprivileged user with minimal access rights.
Run all non-administrative software as a non-administrative user with the least amount of privileges required to successfully operate. This will greatly reduce the potential damage that successful exploitation may achieve.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor the network for suspicious requests. This may help detect attacks that try to exploit These and similar vulnerabilities. Audit all applicable logs regularly.

Updates are available. Please see the references or vendor advisory for more information.