CVE-2005-3884 in Zainu
Summary
by MITRE
Multiple SQL injection vulnerabilities in the search action in Zainu 2.0 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) term and (2) start parameters to index.php.
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Analysis
by VulDB Data Team • 08/31/2017
The vulnerability identified as CVE-2005-3884 represents a critical security flaw affecting Zainu 2.0 and earlier versions, specifically targeting the search functionality within the application. This vulnerability falls under the category of SQL injection attacks, which occur when an application fails to properly validate or sanitize user input before incorporating it into database queries. The affected component is the search action in index.php, making it a core operational element that handles user queries and processes database interactions. The vulnerability is particularly concerning as it affects two distinct parameter fields within the same endpoint, amplifying the attack surface and potential impact.
The technical implementation of this vulnerability stems from insufficient input validation mechanisms within the Zainu application's search functionality. When users submit search terms through the web interface, the application processes these inputs directly without proper sanitization or parameterization. The term and start parameters in index.php serve as entry points where malicious input can be injected into the SQL execution context. Attackers can craft specially formatted input strings that manipulate the underlying database query structure, allowing them to execute arbitrary SQL commands on the backend database server. This flaw directly maps to CWE-89, which specifically addresses SQL injection vulnerabilities in software applications, and represents a classic example of insecure data handling practices in web applications.
The operational impact of this vulnerability extends far beyond simple data retrieval manipulation. Remote attackers with knowledge of the vulnerable parameters can potentially gain unauthorized access to sensitive database information, including user credentials, personal data, and system configurations. The ability to execute arbitrary SQL commands opens pathways for data exfiltration, data modification, and even complete database compromise. Depending on the database permissions assigned to the application's database user account, attackers might be able to escalate privileges, create new user accounts, or even execute system-level commands. This vulnerability directly aligns with ATT&CK technique T1071.004, which covers application layer protocol manipulation, and T1190, which addresses exploitation of remote services through injection flaws. The remote nature of this vulnerability means that attackers do not require physical access to the system, making it particularly dangerous for web-facing applications.
Mitigation strategies for CVE-2005-3884 should prioritize immediate patching of the affected Zainu application to version 2.1 or later, where the SQL injection vulnerabilities have been addressed through proper input validation and parameterized query implementation. Organizations should implement comprehensive input sanitization measures that validate all user-supplied data against expected formats and ranges, ensuring that special SQL characters are properly escaped or filtered. The implementation of prepared statements or parameterized queries should be enforced throughout the application codebase to prevent direct concatenation of user input into SQL commands. Additionally, database access controls should be reviewed and restricted to minimize the potential damage from successful exploitation attempts. Network-level protections such as web application firewalls and intrusion detection systems can provide additional layers of defense, though these should not be considered replacements for proper code-level fixes. The vulnerability demonstrates the critical importance of following secure coding practices and adhering to industry standards such as those outlined in the OWASP Top Ten, which consistently ranks injection flaws among the most critical web application security risks.