CVE-2000-1212 in Zope
Summary
by MITRE
Zope 2.2.0 through 2.2.4 does not properly protect a data updating method on Image and File objects, which allows attackers with DTML editing privileges to modify the raw data of these objects.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 05/31/2019
The vulnerability identified as CVE-2000-1212 affects Zope content management systems version 2.2.0 through 2.2.4, specifically targeting the protection mechanisms surrounding Image and File objects within the system. This weakness stems from insufficient access controls that fail to properly validate data modification requests for these object types, creating a critical security gap in the platform's object-oriented architecture.
The technical flaw manifests in the improper implementation of data updating methods for Image and File objects, where the system lacks adequate authorization checks before allowing modifications to raw data content. Attackers possessing DTML editing privileges can exploit this vulnerability to directly manipulate the underlying binary data of these objects, bypassing normal security boundaries that should protect sensitive content. This represents a fundamental failure in the principle of least privilege and proper access control enforcement within the Zope framework.
The operational impact of this vulnerability is significant as it allows authenticated attackers to potentially inject malicious content into image and file objects, leading to various security consequences including data corruption, unauthorized content modification, and potential execution of malicious code within the application context. The vulnerability affects the integrity and confidentiality of stored media content, as attackers can alter the raw data of these objects without proper authorization, potentially leading to more severe downstream security implications.
This vulnerability maps to CWE-284 Access Control Issues, specifically related to insufficient access control mechanisms and improper privilege management. The flaw also aligns with ATT&CK technique T1078 Valid Accounts, as it leverages existing DTML editing privileges to escalate privileges within the system. Organizations using affected Zope versions face risks of data integrity compromise and potential unauthorized content manipulation that could affect web applications and content management workflows.
Mitigation strategies should include immediate upgrading to patched versions of Zope 2.2.5 or later, implementing additional access control layers, and conducting thorough security reviews of existing DTML scripts and object permissions. Administrators should also enforce strict privilege separation and regularly audit access controls for image and file objects. The vulnerability underscores the importance of proper input validation and access control implementation in web application frameworks, particularly for content management systems handling user-uploaded media files.