CVE-2010-4770 in DVD Rentals Script
Summary
by MITRE
SQL injection vulnerability in index.php in CommodityRentals DVD Rentals Script allows remote attackers to execute arbitrary SQL commands via the cat_id parameter in a catalog action.
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Analysis
by VulDB Data Team • 03/24/2025
The CVE-2010-4770 vulnerability represents a critical sql injection flaw in the CommodityRentals DVD Rentals Script that exposes remote attackers to arbitrary code execution capabilities. This vulnerability specifically targets the index.php file within the catalog action functionality where the cat_id parameter is processed without proper input validation or sanitization. The flaw exists at the application layer where user-supplied input directly influences database query construction, creating an avenue for malicious actors to manipulate the underlying sql infrastructure.
The technical implementation of this vulnerability stems from improper parameter handling within the web application's backend processing logic. When the cat_id parameter is submitted through the catalog action, the application fails to implement adequate input filtering or escape sequences that would prevent malicious sql code from being interpreted as part of the intended query. This weakness aligns with CWE-89, which specifically addresses sql injection vulnerabilities where untrusted data is incorporated into sql commands without proper sanitization. The vulnerability operates at the intersection of application security and database integrity, where user input directly affects query execution paths.
The operational impact of this vulnerability extends beyond simple data theft or modification to encompass complete system compromise potential. Remote attackers can leverage this flaw to execute arbitrary sql commands against the underlying database, potentially gaining access to sensitive customer information, rental records, and system configuration data. The vulnerability enables attackers to perform unauthorized database operations including data extraction, modification, deletion, and even privilege escalation within the database environment. This represents a significant risk to business continuity and data protection compliance, particularly in industries subject to regulations such as pci dss or gdpr that mandate robust data security controls.
Mitigation strategies for CVE-2010-4770 should prioritize immediate implementation of parameterized queries or prepared statements to prevent sql injection exploitation. The application code must be updated to validate and sanitize all user inputs before processing, particularly parameters used in database operations. Input validation should include length restrictions, character set validation, and the implementation of whitelisting approaches for critical parameters like cat_id. Security measures should also incorporate proper error handling to prevent information leakage that could aid attackers in crafting successful exploitation payloads. Organizations should implement web application firewalls and intrusion detection systems to monitor for suspicious sql injection patterns, while maintaining comprehensive audit trails for security incident response. The remediation process should align with nist cybersecurity framework principles and incorporate regular security testing including automated scanning and manual penetration testing to ensure the vulnerability has been properly addressed.