CVE-2002-0808 in Bugzilla
Summary
by MITRE
Bugzilla 2.14 before 2.14.2, and 2.16 before 2.16rc2, when performing a mass change, sets the groupset of all bugs to the groupset of the first bug, which could inadvertently cause insecure groupset permissions to be assigned to some bugs.
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Analysis
by VulDB Data Team • 05/22/2019
The vulnerability described in CVE-2002-0808 represents a critical access control flaw in Bugzilla version 2.14 before 2.14.2 and 2.16 before 2.16rc2 that affects the mass change functionality of the bug tracking system. This issue stems from improper handling of group permissions during bulk operations, creating a scenario where administrative privileges could be unintentionally granted to bugs that should remain restricted. The flaw specifically manifests when administrators attempt to perform mass changes across multiple bug reports, a common administrative task in large-scale software development environments where multiple developers and stakeholders collaborate on issue tracking.
The technical implementation of this vulnerability occurs at the groupset assignment level within Bugzilla's permission system. When executing a mass change operation, the system incorrectly propagates the groupset permissions from the first bug in the selected set to all subsequent bugs in the batch. This behavior violates fundamental security principles by allowing unauthorized permission escalation, as the groupset of the first bug may contain permissions that should not be inherited by other bugs in the collection. The flaw essentially creates a privilege propagation mechanism that bypasses normal access control checks, potentially allowing users with limited privileges to gain access to bugs that contain sensitive information or require elevated permissions for modification.
From an operational impact perspective, this vulnerability poses significant risks to organizations relying on Bugzilla for managing sensitive software development issues. The insecure groupset permissions could lead to unauthorized access to confidential bug reports, potentially exposing source code vulnerabilities, security flaws, or other sensitive development information to individuals who should not have access. This represents a direct violation of the principle of least privilege and could result in data breaches or unauthorized modifications to critical software components. The vulnerability is particularly concerning in enterprise environments where bug tracking systems contain information about production systems, security patches, or proprietary development work that requires strict access controls.
The flaw aligns with CWE-284, which addresses improper access control mechanisms, and demonstrates how mass operations in security-critical systems can introduce unintended privilege escalation paths. Organizations using affected Bugzilla versions should immediately implement mitigation strategies including upgrading to the patched versions 2.14.2 and 2.16rc2, which contain the necessary fixes to properly handle groupset permissions during mass change operations. Additional mitigations may include implementing stricter access controls for mass change functionality, conducting regular audits of groupset assignments, and ensuring that administrators perform careful review of permission changes before executing bulk operations. The vulnerability also highlights the importance of proper input validation and privilege management in web-based issue tracking systems, as outlined in various security frameworks and best practices for maintaining secure software development environments.