CVE-2000-1211 in Zope
Summary
by MITRE
Zope 2.2.0 through 2.2.4 does not properly perform security registration for legacy names of object constructors such as DTML method objects, which could allow attackers to perform unauthorized activities.
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Analysis
by VulDB Data Team • 05/31/2019
The vulnerability identified as CVE-2000-1211 affects Zope versions 2.2.0 through 2.2.4 and represents a critical security flaw in the application server's object constructor handling mechanisms. This issue stems from inadequate security registration processes for legacy object names, specifically impacting DTML method objects within the Zope framework. The vulnerability creates a pathway for unauthorized access and privilege escalation by exploiting improper access control mechanisms that should have prevented certain object construction operations.
The technical flaw manifests in how Zope handles legacy naming conventions for object constructors, particularly within its DTML (Dynamic Template Markup Language) subsystem. When objects are created or accessed through legacy names, the security registration process fails to properly validate or restrict access permissions. This creates a scenario where attackers can bypass normal access controls and potentially execute unauthorized operations on the application server. The vulnerability is particularly concerning because DTML methods often have elevated privileges within the Zope environment, making them attractive targets for exploitation.
From an operational impact perspective, this vulnerability enables attackers to perform unauthorized activities that could range from data theft and modification to complete system compromise. The flaw allows malicious actors to exploit legacy object constructors to gain access to restricted functionality, potentially leading to unauthorized code execution, data manipulation, or privilege escalation within the Zope application server environment. The impact extends beyond simple access control violations as it can enable attackers to manipulate the core application behavior and potentially compromise the entire server infrastructure.
Organizations using affected Zope versions should immediately implement mitigations including upgrading to patched versions of the software, implementing additional access controls, and reviewing existing security configurations. The vulnerability aligns with CWE-284, which addresses improper access control issues, and relates to ATT&CK techniques involving privilege escalation and unauthorized access. Security measures should include comprehensive monitoring of object constructor access patterns, implementation of proper access control lists, and regular security auditing of legacy object handling mechanisms. The recommended approach involves not only patching the software but also conducting thorough security assessments to identify and remediate any potential exploitation attempts that may have already occurred.