CVE-2011-5098: Opscode Chef

Medium severity, CVSS 6.5. EPSS: 1.7% chance of exploitation in the next 30 days.

chef-server-api/app/controllers/clients.rb in Chef Server in Chef before 0.9.20, and 0.10.x before 0.10.6, does not require administrative privileges for creating admin clients, which allows remote authenticated users to bypass intended access restrictions by leveraging read permission for the validation key and executing a knife client create command with the --admin option.

Affected products

• Opscode Chef: up to and including 0.9.18; version 0.5.1 only; version 0.5.2 only; version 0.5.4 only; version 0.5.6 only; version 0.6.0 only; …

Published 2012-08-08. Last modified 2026-06-16.