CVE-2002-0170: Zope does not properly verify the access for objects with proxy roles

The vulnerability centers on improper access control for objects with proxy roles. The hotfix description explicitly states the owner's context was not considered during security checks. These two functions are core to Zope's security model: of manages ownership context acquisition (critical for proxy role inheritance), and SecurityManager.validate handles permission validation. The lack of proper context propagation in these functions would directly explain the described privilege escalation. While no explicit commit diff is provided, the CWE-284 classification and Zope's security architecture strongly implicate these components.