CVE-2009-4203 in Arab
Summary
by MITRE
Multiple SQL injection vulnerabilities in admin/aclass/admin_func.php in Arab Portal 2.2 allow remote attackers to execute arbitrary SQL commands via the (1) X-Forwarded-For or (2) Client-IP HTTP header in a request to the default URI under admin/.
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Analysis
by VulDB Data Team • 02/15/2025
The vulnerability identified as CVE-2009-4203 represents a critical SQL injection flaw within the Arab Portal 2.2 content management system. This vulnerability exists in the administrative function file admin/aclass/admin_func.php, where the application fails to properly sanitize HTTP headers before incorporating them into database queries. The attack vector specifically targets the X-Forwarded-For and Client-IP HTTP headers, which are commonly used by web applications to determine the original IP address of a client when requests pass through proxies or load balancers. These headers are particularly susceptible to injection attacks because they are often processed without adequate input validation or parameterization, making them prime targets for malicious exploitation.
The technical implementation of this vulnerability stems from improper input handling within the administrative backend of the Arab Portal system. When a remote attacker sends a crafted HTTP request containing malicious SQL payloads within either the X-Forwarded-For or Client-IP headers, the application directly concatenates these unvalidated inputs into SQL query strings without appropriate escaping or parameterization techniques. This flaw aligns with CWE-89, which categorizes SQL injection vulnerabilities as a direct result of insufficient input validation and improper query construction. The vulnerability is classified as a remote code execution risk because successful exploitation allows attackers to manipulate the underlying database, potentially leading to full system compromise including data theft, unauthorized access to administrative functions, and modification of critical system information.
The operational impact of this vulnerability is severe and multifaceted. Remote attackers can leverage this weakness to execute arbitrary SQL commands against the database backend, potentially gaining unauthorized access to sensitive information including user credentials, database schemas, and confidential content. The attack requires no authentication and can be executed through standard HTTP requests, making it particularly dangerous as it allows for automated exploitation across multiple systems. This vulnerability directly maps to several ATT&CK techniques including T1190 for exploitation of remote services and T1078 for valid accounts usage, as attackers may use the compromised system to establish persistent access. The widespread use of the Arab Portal system in government and institutional environments amplifies the potential damage, as successful exploitation could compromise sensitive public records and administrative functions.
Mitigation strategies for CVE-2009-4203 should focus on immediate patching of the affected Arab Portal 2.2 system, as well as implementation of proper input validation and parameterization techniques. Organizations should deploy web application firewalls to monitor and filter suspicious HTTP headers, particularly those that are commonly exploited in SQL injection attacks. The implementation of prepared statements and parameterized queries in the affected admin_func.php file would prevent the injection of malicious SQL code. Additionally, network segmentation and access controls should be implemented to limit exposure of administrative interfaces to trusted networks only. Security monitoring should include detection of unusual patterns in HTTP header values, particularly those containing SQL keywords or injection patterns. Regular security audits and vulnerability assessments should be conducted to identify similar input validation weaknesses in other system components, ensuring comprehensive protection against similar attack vectors. The remediation process should also include proper logging and monitoring of administrative access attempts to detect potential exploitation attempts and maintain audit trails for forensic analysis.