CVE-2009-2777 in GarageSales Script
Summary
by MITRE
SQL injection vulnerability in visitor/view.php in GarageSales Script allows remote attackers to execute arbitrary SQL commands via the key parameter.
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Analysis
by VulDB Data Team • 05/25/2025
The vulnerability identified as CVE-2009-2777 represents a critical sql injection flaw within the GarageSales Script application, specifically affecting the visitor/view.php component. This vulnerability resides in the handling of user input parameters, where the key parameter fails to properly sanitize or validate incoming data before incorporating it into sql queries. The flaw enables remote attackers to manipulate the application's database interactions by injecting malicious sql code through the vulnerable parameter. Such an issue fundamentally compromises the integrity and confidentiality of the underlying database system that stores garage sale listings and related visitor information.
The technical implementation of this vulnerability stems from improper input validation and query construction practices within the php application code. When the key parameter is processed in the visitor/view.php script, it directly concatenates user-supplied values into sql statements without adequate sanitization or parameterization. This creates an environment where malicious actors can craft sql payloads that, when executed, can retrieve, modify, or delete sensitive database records. The vulnerability aligns with CWE-89 which specifically addresses sql injection flaws and represents a classic example of insecure data handling in web applications. Attackers can exploit this weakness to bypass authentication mechanisms, extract confidential information including user credentials, and potentially gain unauthorized access to the entire database infrastructure supporting the garage sales platform.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with comprehensive database access capabilities that can compromise the entire application ecosystem. Remote execution of arbitrary sql commands allows threat actors to manipulate the garage sales listings, potentially removing or altering critical business information, and could lead to service disruption or complete system compromise. The vulnerability affects the availability, integrity, and confidentiality aspects of the information security triad, as unauthorized users can modify data, deny legitimate access, and extract sensitive information. Organizations relying on the GarageSales Script would face significant operational risks including potential regulatory compliance violations, loss of customer trust, and financial damages from data breaches. The attack surface is particularly concerning as it allows remote exploitation without requiring local system access, making it accessible to attackers worldwide.
Mitigation strategies for CVE-2009-2777 must address both immediate remediation and long-term security improvements within the application architecture. The primary fix involves implementing proper parameterized queries or prepared statements to ensure that user input is never directly concatenated into sql commands. This approach aligns with defensive coding practices recommended by the owasp foundation and provides robust protection against sql injection attacks. Additionally, comprehensive input validation should be implemented to filter and sanitize all user-supplied data before processing, including the key parameter in this case. Organizations should also consider implementing web application firewalls to detect and block suspicious sql injection attempts, while regular security audits and code reviews can help identify similar vulnerabilities in other parts of the application. The remediation process should include updating the GarageSales Script to a patched version if available, or implementing custom fixes that properly escape or validate all database inputs. System administrators should also monitor database logs for signs of exploitation attempts and implement proper access controls to limit the damage potential even if an attack succeeds. This vulnerability demonstrates the critical importance of input validation and proper database interaction practices in preventing widespread security breaches within web applications.