CVE-2008-6813 in phpWebNews
Summary
by MITRE
SQL injection vulnerability in index.php in phpWebNews 0.2 MySQL Edition allows remote attackers to execute arbitrary SQL commands via the id_kat parameter.
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Analysis
by VulDB Data Team • 10/31/2024
The vulnerability identified as CVE-2008-6813 represents a critical sql injection flaw in phpWebNews version 0.2 MySQL Edition, specifically affecting the index.php script. This vulnerability arises from insufficient input validation and sanitization of user-provided data, creating a pathway for malicious actors to manipulate database queries through the id_kat parameter. The flaw enables remote attackers to execute arbitrary sql commands against the underlying database system, potentially leading to complete system compromise and unauthorized data access.
The technical implementation of this vulnerability stems from improper parameter handling within the phpWebNews application where the id_kat parameter is directly incorporated into sql query construction without adequate sanitization or parameterization. This classic sql injection vector allows attackers to append malicious sql fragments to the legitimate query, bypassing normal authentication mechanisms and gaining unauthorized access to database resources. The vulnerability falls under the common weakness enumeration CWE-89 which specifically addresses sql injection flaws in software applications. Attackers can exploit this weakness by crafting malicious input strings that alter the intended flow of sql execution, potentially extracting sensitive information, modifying database records, or even executing system commands.
The operational impact of CVE-2008-6813 extends beyond simple data theft, as it provides attackers with a comprehensive attack surface for database manipulation. Successful exploitation could result in complete database compromise, allowing unauthorized users to view, modify, or delete sensitive information stored within the phpWebNews system. The remote nature of this vulnerability means that attackers do not require physical access to the system, making the threat particularly severe for web applications that are publicly accessible. According to the attack technique framework, this vulnerability aligns with T1190 - exploitation of remote services and T1071.004 - application layer protocol exploitation, representing a fundamental breach in application security that could enable further lateral movement within compromised networks.
Mitigation strategies for this vulnerability require immediate implementation of proper input validation and parameterized queries to prevent sql injection attacks. The recommended approach involves sanitizing all user inputs through proper escaping mechanisms or utilizing prepared statements with parameter binding to ensure that user-supplied data cannot alter the intended sql query structure. Additionally, implementing proper access controls and database permissions can limit the damage potential even if an attack succeeds. System administrators should also consider applying the latest security patches provided by phpWebNews developers, though this specific version appears to be obsolete. Network segmentation and intrusion detection systems can help monitor for suspicious sql query patterns, while regular security audits should verify that similar vulnerabilities do not exist in other components of the application stack. The vulnerability demonstrates the critical importance of input validation and proper sql query construction as outlined in secure coding practices and security standards such as those recommended by owasp and nist.