CVE-2009-2894 in Ebay Clone
Summary
by MITRE
Multiple SQL injection vulnerabilities in Ebay Clone 2009 allow remote attackers to execute arbitrary SQL commands via the (1) id parameter to product_desc.php, and the cid parameter to (2) showcategory.php and (3) gallery.php.
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Analysis
by VulDB Data Team • 04/27/2025
The vulnerability identified as CVE-2009-2894 represents a critical SQL injection flaw in the Ebay Clone 2009 web application, specifically targeting three distinct entry points that collectively expose the system to remote code execution. This vulnerability falls under the CWE-89 category of SQL Injection, where improper input validation allows malicious actors to manipulate database queries through crafted user inputs. The affected parameters include the id parameter in product_desc.php, and the cid parameter in both showcategory.php and gallery.php, creating multiple attack vectors that significantly increase the exploitability of the system. The vulnerability demonstrates a fundamental lack of input sanitization and proper parameterized query implementation, allowing attackers to inject malicious SQL code that bypasses authentication mechanisms and potentially compromises the entire database infrastructure.
The technical exploitation of this vulnerability occurs when an attacker submits malicious input through the identified parameters, which are then directly incorporated into SQL queries without proper sanitization or parameterization. When the web application processes these inputs, the injected SQL commands execute within the database context, potentially allowing attackers to extract sensitive information, modify database records, or even gain administrative privileges. The attack vector is particularly dangerous because it operates at the database level, meaning that successful exploitation could result in complete data compromise, unauthorized access to user accounts, and potential system-wide infiltration. The vulnerability's persistence across multiple files indicates a systemic design flaw in the application's input handling mechanisms, suggesting that the developers failed to implement consistent security measures throughout the codebase.
The operational impact of CVE-2009-2894 extends far beyond simple data theft, as it creates opportunities for attackers to establish persistent access to the affected system. An attacker could leverage this vulnerability to perform data exfiltration, modify product listings, manipulate user accounts, or even escalate privileges to gain full administrative control over the eBay clone platform. The implications are particularly severe for e-commerce platforms where user data, transaction records, and business-critical information are stored. This vulnerability aligns with ATT&CK technique T1190 for exploit public-facing application and T1071.004 for application layer protocol to maintain access and persistence. The widespread nature of SQL injection vulnerabilities in web applications makes this particularly concerning as attackers can use similar techniques against other platforms with similar architectural flaws.
Mitigation strategies for CVE-2009-2894 must address the fundamental architectural issues that enabled the vulnerability to exist in the first place. The primary remediation involves implementing proper input validation and parameterized queries throughout the application codebase, specifically targeting the three identified vulnerable parameters. Developers should adopt prepared statements or parameterized queries to ensure that user input is never directly concatenated into SQL commands. Additionally, implementing proper access controls, input sanitization, and output encoding mechanisms can significantly reduce the attack surface. Organizations should also consider implementing web application firewalls and intrusion detection systems to monitor for suspicious SQL injection attempts. Regular security assessments and code reviews should be conducted to identify similar vulnerabilities across the entire application stack, as this vulnerability demonstrates a pattern of insufficient security controls that could exist elsewhere in the platform. The remediation process should follow industry standards including OWASP Top Ten security practices and NIST guidelines for secure coding to prevent similar issues from reoccurring in future development cycles.