CVE-2008-5852 in Guestbook
Summary
by MITRE
Emefa Guestbook 3.0 stores sensitive information under the web root with insufficient access control, which allows remote attackers to download the database file via a direct request for guestbook.mdb.
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Analysis
by VulDB Data Team • 11/20/2024
The vulnerability identified as CVE-2008-5852 affects Emefa Guestbook version 3.0 and represents a critical security flaw in web application configuration and access control implementation. This issue stems from improper file permissions and directory structure design where sensitive database files are stored in locations accessible to unauthorized users. The vulnerability specifically impacts the guestbook.mdb database file which contains guestbook entries, user information, and potentially other sensitive data that should remain protected from public access.
The technical exploitation of this vulnerability occurs through direct HTTP requests targeting the database file located within the web root directory. Attackers can simply append the filename guestbook.mdb to the web application URL to access the database file directly without authentication or authorization. This flaw demonstrates a fundamental failure in application security architecture where sensitive data is not properly protected through access control mechanisms. The vulnerability aligns with CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') and CWE-73 - External Control of File Name or Path, as it allows attackers to traverse the file system and access restricted resources through predictable file paths.
From an operational perspective, this vulnerability creates significant risk for organizations using the affected software as it enables complete database disclosure without requiring any advanced exploitation techniques. The database file contains potentially sensitive information including guestbook entries, user submissions, and personal data that may include contact information, IP addresses, and other identifying details. This exposure violates the principle of least privilege and demonstrates poor security hygiene in web application deployment practices. The impact extends beyond simple data disclosure as the compromised database may contain information that could be used for further attacks, social engineering, or identity theft.
The attack surface for this vulnerability is minimal and requires only basic web browsing capabilities to exploit. Attackers need not possess advanced technical skills or specialized tools beyond standard web browsers or command-line utilities like curl or wget to retrieve the database file. This makes the vulnerability particularly dangerous as it can be exploited by attackers with minimal technical expertise. The vulnerability also aligns with ATT&CK technique T1213.002 - Data from Information Repositories, where adversaries extract data from databases and repositories without using traditional exploitation methods. Organizations should implement immediate mitigations including moving database files outside the web root directory, implementing proper access controls, and ensuring that all sensitive files are protected through appropriate authentication mechanisms.
Mitigation strategies should focus on immediate architectural fixes including relocating database files to non-web-accessible directories, implementing proper file access controls, and configuring web server permissions to prevent direct access to database files. The solution requires establishing a proper security posture where sensitive data is not exposed through web paths and where access control mechanisms are properly enforced. Organizations should also implement regular security audits to identify similar misconfigurations and ensure that all application components follow security best practices. The vulnerability serves as a reminder of the critical importance of proper file system permissions and the fundamental security principle that sensitive data should never be stored in locations accessible to unauthenticated users.