CVE-2004-1952 in Advanced Guestbook
Summary
by MITRE
SQL injection vulnerability in Advanced Guestbook 2.2 allows remote attackers to execute arbitrary SQL commands and gain privileges via the password.
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Analysis
by VulDB Data Team • 02/02/2025
The vulnerability identified as CVE-2004-1952 represents a critical SQL injection flaw within the Advanced Guestbook 2.2 web application that exposes a fundamental security weakness in input validation and database interaction processes. This vulnerability specifically affects the password parameter handling within the application's authentication mechanisms, creating an exploitable vector that allows remote attackers to manipulate the underlying database queries through maliciously crafted input. The flaw stems from inadequate sanitization of user-supplied data before incorporating it into SQL command strings, which directly violates established security principles for preventing injection attacks.
The technical implementation of this vulnerability occurs when the application processes password inputs without proper parameterization or input filtering, enabling attackers to inject malicious SQL code that gets executed within the database context. When a user submits a password value, the application constructs SQL queries by directly concatenating the input parameter into the query string rather than using prepared statements or proper parameter binding mechanisms. This design flaw creates an environment where attackers can manipulate the SQL execution flow by injecting special SQL characters and commands that alter the intended query behavior. The vulnerability operates at the application layer and leverages the trust relationship between the web application and the database backend, allowing for unauthorized access to database resources and potential privilege escalation.
The operational impact of this vulnerability extends beyond simple data theft to encompass complete system compromise and unauthorized administrative access. Attackers exploiting this flaw can execute arbitrary SQL commands that may include data extraction, modification, or deletion operations against the guestbook database. The ability to gain privileges through password manipulation suggests that the vulnerability may also enable attackers to escalate their access level within the application, potentially allowing them to modify guestbook entries, access user credentials, or even gain shell access to the underlying server. This vulnerability directly maps to CWE-89 which categorizes SQL injection flaws as a critical weakness in software security architecture and represents a significant risk to the confidentiality, integrity, and availability of the affected system. The attack surface is particularly concerning given that guestbook applications are often deployed in environments with minimal security hardening and may contain sensitive user information.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term architectural improvements to prevent similar issues from occurring in the future. The most effective immediate solution involves implementing proper parameterized queries or prepared statements for all database interactions, ensuring that user input is treated as data rather than executable code. Additionally, comprehensive input validation should be implemented at multiple layers including application-level filtering, regular expression validation for password fields, and strict sanitization of all user-supplied parameters before database processing. Organizations should also implement proper access controls and privilege separation to limit the database user account permissions to only those operations necessary for the application's functionality. This vulnerability demonstrates the importance of following secure coding practices and adheres to ATT&CK technique T1071.004 which covers application layer protocol manipulation and represents a classic example of how insecure data handling can lead to complete system compromise. The remediation process should include thorough code review, implementation of input/output encoding, and establishment of proper security testing procedures including automated vulnerability scanning and manual penetration testing to identify similar injection vulnerabilities in the application stack.