CVE-2012-6526 in Freelance Zone
Summary
by MITRE
SQL injection vulnerability in show_code.php in Vastal I-Tech Freelance Zone allows remote attackers to execute arbitrary SQL commands via the code_id parameter.
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Analysis
by VulDB Data Team • 01/12/2025
The vulnerability identified as CVE-2012-6526 represents a critical sql injection flaw within the Vastal I-Tech Freelance Zone application, specifically affecting the show_code.php script. This vulnerability resides in the web application's handling of user input through the code_id parameter, which is processed without proper sanitization or validation mechanisms. The flaw enables remote attackers to manipulate the underlying database queries by injecting malicious sql code through the targeted parameter, potentially compromising the entire database infrastructure.
This vulnerability falls under the common weakness enumeration CWE-89 which categorizes sql injection as a severe security weakness occurring when user-supplied data is directly incorporated into sql queries without adequate sanitization. The attack vector is particularly dangerous as it allows remote exploitation without requiring authentication or privileged access to the system. The vulnerability exists due to inadequate input validation and improper parameter handling within the application's backend processing logic, where the code_id parameter is directly concatenated into sql statements without proper escaping or parameter binding.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation can lead to complete database compromise including data modification, deletion, and unauthorized access to sensitive user information. Attackers can leverage this flaw to execute arbitrary commands on the database server, potentially escalating privileges and gaining access to additional system resources. The vulnerability affects the confidentiality, integrity, and availability of the freelance zone platform, as unauthorized users can manipulate the database content and potentially disrupt service availability.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and parameterized queries to prevent sql injection attacks. The recommended approach involves using prepared statements with parameter binding instead of direct string concatenation, which ensures that user input is properly escaped and treated as data rather than executable code. Additionally, implementing proper access controls, input sanitization, and output encoding can significantly reduce the attack surface. Organizations should also consider implementing web application firewalls and regular security code reviews to identify and remediate similar vulnerabilities. The remediation aligns with mitre att&ck framework tactic TA0006 (credential access) and technique T1190 (exploitation of vulnerabilities) while addressing the fundamental security principle of input validation and proper data handling. Regular patch management and security assessments are essential to prevent exploitation of such vulnerabilities in production environments.