CVE-2009-5003 in Banner Exchange Script
Summary
by MITRE
SQL injection vulnerability in click.php in e-soft24 Banner Exchange Script 1.0 allows remote attackers to execute arbitrary SQL commands via the targetid parameter.
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Analysis
by VulDB Data Team • 02/19/2025
The CVE-2009-5003 vulnerability represents a critical sql injection flaw within the e-soft24 Banner Exchange Script version 1.0, specifically affecting the click.php component. This vulnerability resides in the handling of user-supplied input through the targetid parameter, which is processed without adequate sanitization or validation mechanisms. The flaw allows remote attackers to inject malicious sql commands directly into the application's database layer, potentially compromising the entire backend infrastructure. The vulnerability classification aligns with cwe-89 which specifically addresses sql injection weaknesses in software applications. This type of vulnerability falls under the attack pattern category of cwe-116 within the attack technique framework, where attackers exploit improper input handling to manipulate database queries. The exposure occurs when the application directly incorporates user-provided data into sql statements without proper parameterization or escaping techniques, creating an avenue for unauthorized data access, modification, or deletion.
The technical implementation of this vulnerability demonstrates a classic sql injection attack vector where the targetid parameter in click.php serves as the entry point for malicious input. When an attacker submits crafted sql payloads through this parameter, the application fails to validate or sanitize the input before incorporating it into database queries. This lack of input validation creates a condition where sql commands can be executed with the privileges of the application's database user. The vulnerability is particularly dangerous because it allows for arbitrary code execution at the database level, potentially enabling attackers to extract sensitive information, modify database contents, or even escalate privileges to gain full administrative control over the database system. The impact extends beyond simple data theft as attackers can leverage this vulnerability to perform destructive operations or establish persistent access points within the target environment.
The operational consequences of CVE-2009-5003 are severe and multifaceted, affecting both data integrity and system availability. Organizations running the affected e-soft24 Banner Exchange Script version 1.0 face significant risks including unauthorized data access, data corruption, and potential system compromise. The vulnerability can be exploited by attackers without requiring any special privileges or authentication, making it particularly dangerous in environments where the application is publicly accessible. Attackers can use this vulnerability to extract banner statistics, user information, and potentially sensitive business data stored within the application's database. The vulnerability also enables attackers to modify banner rotation configurations or disable the banner exchange functionality entirely, impacting business operations and potentially causing revenue loss. Additionally, the vulnerability may serve as a foothold for further attacks within the network, as attackers can use the compromised system to pivot toward other internal resources. The exploitation of this vulnerability can result in complete database compromise, allowing attackers to perform unauthorized operations such as creating new database users, modifying existing records, or even deleting critical tables.
Mitigation strategies for CVE-2009-5003 must address the root cause through proper input validation and parameterized queries. The most effective approach involves implementing prepared statements or parameterized queries for all database interactions, ensuring that user input is never directly concatenated into sql commands. Organizations should immediately upgrade to patched versions of the e-soft24 Banner Exchange Script or implement proper input sanitization measures. The solution should include comprehensive input validation that rejects or escapes special sql characters and keywords within the targetid parameter. Network-based mitigations such as web application firewalls can provide additional protection by filtering suspicious sql injection patterns. Security measures should also include monitoring database logs for unusual query patterns that may indicate exploitation attempts. Regular security assessments and code reviews should be implemented to identify similar vulnerabilities in other components of the application. Organizations should also consider implementing least privilege database access controls to limit the potential damage from successful exploitation attempts. The vulnerability highlights the importance of following secure coding practices and adhering to industry standards such as those outlined in the owasp top ten project, which specifically addresses sql injection as one of the most critical web application security risks.