CVE-2000-0725 in Zope
Summary
by MITRE
Zope before 2.2.1 does not properly restrict access to the getRoles method, which allows users who can edit DTML to add or modify roles by modifying the roles list that is included in a request.
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Analysis
by VulDB Data Team • 10/12/2025
The vulnerability described in CVE-2000-0725 represents a critical access control flaw within the Zope content management system prior to version 2.2.1. This issue stems from insufficient authorization checks on the getRoles method, which is a fundamental component of Zope's security architecture. The vulnerability specifically affects users who possess DTML (Dynamic Template Markup Language) editing privileges, creating a dangerous escalation path that allows malicious actors to manipulate role assignments within the system. The flaw essentially permits unauthorized users to modify the roles list that is transmitted in HTTP requests, thereby enabling them to grant themselves elevated privileges or alter existing user permissions.
The technical exploitation of this vulnerability occurs through the manipulation of DTML documents that can access the getRoles method. When a user with editing privileges modifies a DTML template, they can inject code that directly interacts with the getRoles method to alter the roles list. This method is typically used to retrieve the roles assigned to a user, but due to the lack of proper access controls, it becomes a vector for privilege escalation. The vulnerability resides in the absence of proper input validation and authorization checks, allowing attackers to bypass the normal security mechanisms that should prevent unauthorized modifications to user roles. This type of flaw falls under the category of improper access control as defined by CWE-284, which specifically addresses insufficient access control mechanisms in software systems.
The operational impact of this vulnerability is severe and far-reaching for any organization relying on Zope for content management or web application hosting. An attacker who gains DTML editing privileges can escalate their access to administrative levels within the Zope environment, potentially compromising the entire system. The vulnerability creates a pathway for privilege escalation that can lead to complete system compromise, as the attacker can modify roles to gain access to sensitive data, modify content, or even execute arbitrary code within the application environment. This type of vulnerability is particularly dangerous because it can be exploited through relatively simple means, making it attractive to attackers who may not possess advanced technical skills. The attack pattern aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation through legitimate system access.
Organizations affected by this vulnerability should implement immediate mitigations including upgrading to Zope version 2.2.1 or later, which contains the necessary patches to address the access control flaw. Additionally, administrators should review and tighten DTML editing permissions, ensuring that only trusted users have the ability to modify templates that could potentially access system-level methods. Network segmentation and monitoring should be implemented to detect suspicious activities related to role modifications. The mitigation strategy should also include regular security audits of DTML templates and access control configurations to prevent unauthorized modifications. System administrators should consider implementing additional security controls such as role-based access control enforcement and comprehensive logging of all role-related activities to detect potential exploitation attempts. This vulnerability underscores the importance of proper access control implementation and demonstrates how a single flawed method can create cascading security issues within an application framework.