CVE-2008-7292 in Bugzilla
Summary
by MITRE
Bugzilla 2.20.x before 2.20.5, 2.22.x before 2.22.3, and 3.0.x before 3.0.3 on Windows does not delete the temporary files associated with uploaded attachments, which allows local users to obtain sensitive information by reading these files, a different vulnerability than CVE-2011-2977.
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Analysis
by VulDB Data Team • 02/10/2019
The vulnerability described in CVE-2008-7292 represents a critical information disclosure issue within the Bugzilla bug tracking system affecting specific version ranges on Windows platforms. This flaw stems from inadequate temporary file management during the attachment upload process, creating persistent security risks that can be exploited by local attackers to access sensitive data. The vulnerability specifically impacts Bugzilla versions 2.20.x prior to 2.20.5, 2.22.x prior to 2.22.3, and 3.0.x prior to 3.0.3, making it particularly concerning for organizations running these older systems. The issue manifests when uploaded attachments are processed through temporary storage mechanisms that fail to properly clean up after themselves, leaving behind potentially sensitive information in temporary directories.
The technical root cause of this vulnerability lies in the improper handling of temporary files within the Windows operating system environment. When users upload attachments to Bugzilla, the system creates temporary files to process these uploads, but fails to execute proper cleanup procedures upon completion of the upload process. This temporary file management failure creates a persistent security exposure where attacker-controlled files may remain accessible to local users who can read the contents of these temporary directories. The vulnerability is classified under CWE-200, which specifically addresses information exposure, and represents a variant of improper cleanup vulnerabilities that have been documented in various software systems. The flaw operates at the system-level file management interface, where temporary file creation and deletion processes are not properly synchronized with the application's operational flow.
The operational impact of this vulnerability extends beyond simple information disclosure to encompass potential data breach scenarios that could compromise sensitive project information, user credentials, or proprietary code. Local attackers with access to the system can exploit this vulnerability by navigating to the temporary file directories and reading the contents of files that were previously associated with uploaded attachments. This access pattern aligns with ATT&CK technique T1005, which covers data from local system, and demonstrates how seemingly benign file handling operations can create significant security risks. The vulnerability affects organizations that rely on Bugzilla for project management and issue tracking, where uploaded attachments may contain sensitive information such as source code, configuration files, or confidential communications. The exposure is particularly concerning in environments where multiple users share the same system or where privileged accounts are used to process attachments, as the temporary files may contain information that should remain confidential.
Mitigation strategies for this vulnerability require immediate patching of affected Bugzilla installations to versions that properly implement temporary file cleanup procedures. Organizations should prioritize updating to Bugzilla versions 2.20.5, 2.22.3, or 3.0.3, which contain the necessary fixes for proper temporary file management. Additionally, system administrators should implement monitoring procedures to detect and alert on unexpected temporary file creation or access patterns, particularly in directories where Bugzilla processes create temporary attachments. The remediation process should include verification that temporary file cleanup routines are properly executing after attachment uploads, and organizations should consider implementing additional security controls such as temporary directory permissions management and regular cleanup procedures. Security teams should also conduct vulnerability assessments to identify any other applications or systems that may exhibit similar temporary file management flaws, as this represents a common pattern of security oversight in software development processes.