CVE-2009-4792 in Karl Core
Summary
by MITRE
SQL injection vulnerability in includes/content/member_content.php in BandSite CMS 1.1.4 allows remote attackers to execute arbitrary SQL commands via the memid parameter to members.php.
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Analysis
by VulDB Data Team • 11/25/2024
The CVE-2009-4792 vulnerability represents a critical sql injection flaw within the BandSite Content Management System version 1.1.4 that exposes the application to remote code execution attacks. This vulnerability specifically targets the member_content.php include file which is invoked through the members.php script, creating a direct pathway for malicious actors to manipulate database queries through improper input validation. The vulnerability occurs when the memid parameter is passed to members.php without adequate sanitization or parameterization, allowing attackers to inject malicious sql commands that bypass authentication mechanisms and gain unauthorized access to sensitive data. The flaw resides in the application's failure to properly escape or validate user-supplied input before incorporating it into database queries, creating an attack surface that aligns with common sql injection patterns identified in the owasp top ten and cwe-89 categories. This vulnerability enables attackers to perform unauthorized database operations including data retrieval, modification, or deletion, potentially leading to complete system compromise.
The technical exploitation of this vulnerability requires minimal prerequisites as attackers only need to craft malicious requests to the vulnerable members.php endpoint with specially formatted memid parameters. When the application processes these parameters, it directly concatenates user input into sql queries without proper input validation or parameter binding mechanisms. This allows attackers to manipulate the sql execution flow by injecting sql syntax elements such as semicolons, comments, or union select statements that alter the intended query behavior. The vulnerability's impact extends beyond simple data theft as it can enable attackers to escalate privileges, create backdoors, or even execute system commands if the database server allows such operations. The attack vector is particularly dangerous because it operates at the database layer, bypassing traditional application-level security controls and potentially allowing attackers to access sensitive user information, member data, and system configuration details.
The operational consequences of this vulnerability can be severe for organizations utilizing BandSite CMS 1.1.4, as it creates a persistent security risk that can be exploited by any remote attacker with basic sql injection knowledge. Organizations may face data breaches, regulatory compliance violations, and potential legal ramifications depending on the nature of the compromised data. The vulnerability's persistence means that once exploited, attackers can maintain access to the compromised systems for extended periods without detection, especially if proper logging and monitoring mechanisms are not in place. This type of vulnerability also increases the risk of lateral movement within networks as compromised systems can serve as launch points for further attacks against connected systems. The impact assessment should consider both immediate data exposure risks and long-term security implications including potential credential theft, service disruption, and reputational damage that can result from successful exploitation of this sql injection vulnerability.
Mitigation strategies for CVE-2009-4792 should focus on immediate patching of the BandSite CMS to version 1.1.5 or later, which contains the necessary fixes for the sql injection vulnerability. Organizations should implement proper input validation and parameterization techniques to prevent similar issues in other applications, ensuring that all user inputs are properly sanitized before being incorporated into database queries. The implementation of prepared statements or parameterized queries should be enforced across all database interactions to eliminate sql injection risks. Network segmentation and access controls should be strengthened to limit exposure of vulnerable applications, while comprehensive logging and monitoring systems should be deployed to detect suspicious database access patterns. Security awareness training for developers should emphasize secure coding practices, particularly input validation and sql query construction techniques. Additionally, regular vulnerability assessments and penetration testing should be conducted to identify and remediate similar security flaws in other applications and systems within the organization's infrastructure, aligning with industry standards such as those recommended in the mitre attack framework and nist cybersecurity framework.