CVE-2006-3034 in MyScrapbook
Summary
by MITRE
MyScrapbook 3.1 allows remote attackers to obtain sensitive information via a direct request to files in the txt-db-api directory such as txt-db-api/sql.php, which reveals the path in an error message.
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Analysis
by VulDB Data Team • 07/29/2018
The vulnerability identified as CVE-2006-3034 affects MyScrapbook version 3.1, a web-based application designed for personal information management. This flaw represents a critical information disclosure vulnerability that exposes the underlying system architecture to remote attackers. The vulnerability specifically manifests when attackers make direct requests to files within the txt-db-api directory, particularly targeting files such as txt-db-api/sql.php. The flaw enables unauthorized access to sensitive system information through error messages that inadvertently reveal critical path information. This type of vulnerability falls under the category of improper error handling and information exposure, which are commonly classified under CWE-209 and CWE-210 in the Common Weakness Enumeration catalog. The vulnerability demonstrates a fundamental security weakness in how the application processes and responds to invalid requests, creating an information leak that can significantly aid attackers in their reconnaissance activities.
The technical implementation of this vulnerability stems from the application's failure to properly sanitize or validate input requests directed at internal API files. When a remote attacker accesses the txt-db-api/sql.php file directly, the application generates an error message that contains the full system path where the application is installed. This occurs because the application does not implement proper error handling mechanisms to prevent sensitive path information from being exposed to unauthorized users. The vulnerability operates at the application level and does not require authentication or specific privileges to exploit, making it particularly dangerous as it can be leveraged by any remote attacker. This type of error-based information disclosure is consistent with ATT&CK technique T1212, which involves obtaining information from error messages during application development and testing phases that should not be exposed in production environments.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with crucial system architecture details that can be used for subsequent exploitation attempts. The revealed path information can help attackers understand the application's deployment structure, potentially revealing the operating system type, file system layout, and application directory hierarchy. This intelligence can significantly reduce the attack surface for future exploitation attempts, as attackers can now craft more targeted attacks against specific system components. The vulnerability affects the confidentiality aspect of the CIA triad by exposing system-level information that should remain private. Additionally, this information disclosure can facilitate other attack vectors such as path traversal attacks or privilege escalation attempts, as attackers can now better understand how the application structures its file access patterns and database connections.
Mitigation strategies for CVE-2006-3034 should focus on implementing proper error handling and input validation mechanisms within the MyScrapbook application. Organizations should ensure that all API endpoints and internal files are protected from direct access by implementing proper access controls and authentication mechanisms. The application should be configured to display generic error messages to users while logging detailed error information internally for administrators. Security measures should include restricting access to the txt-db-api directory through web server configuration, implementing proper directory permissions, and ensuring that error messages do not contain system path information. Additionally, regular security assessments should be conducted to identify and remediate similar information disclosure vulnerabilities. This vulnerability highlights the importance of following secure coding practices and adhering to security standards such as those outlined in the OWASP Top Ten, particularly focusing on preventing information leakage through error messages. The recommended approach involves implementing comprehensive error handling that separates user-facing error messages from system-level debugging information, ensuring that sensitive infrastructure details remain hidden from unauthorized access.