CVE-2009-0106 in PHPAuctions
Summary
by MITRE
SQL injection vulnerability in profile.php in PHPAuctions (aka PHPAuctionSystem) allows remote attackers to execute arbitrary SQL commands via the user_id parameter.
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Analysis
by VulDB Data Team • 11/21/2024
The vulnerability identified as CVE-2009-0106 represents a critical sql injection flaw within the PHPAuctions (also known as PHPAuctionSystem) web application. This vulnerability specifically affects the profile.php script and resides in the user_id parameter handling mechanism. The flaw stems from inadequate input validation and sanitization practices within the application's codebase, creating an exploitable pathway for malicious actors to manipulate database queries through crafted user input.
The technical exploitation of this vulnerability occurs when an attacker submits a malicious user_id parameter value that contains sql commands or injection payloads. The application fails to properly escape or validate the input before incorporating it into database queries, allowing the injected sql code to execute with the privileges of the web application's database user. This creates a severe security risk as attackers can potentially extract sensitive data, modify database contents, or even escalate their privileges within the system. The vulnerability maps directly to CWE-89 which defines sql injection as the insertion of malicious sql fragments into database queries, and aligns with ATT&CK technique T1071.004 for application layer protocol manipulation.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with potential persistence mechanisms and lateral movement capabilities within the affected system. Remote attackers can leverage this weakness to gain unauthorized access to user accounts, customer information, and potentially sensitive business data stored within the application's database. The vulnerability affects the entire user base of the application, as any user_id parameter input can be exploited, making it particularly dangerous for applications handling sensitive information. Additionally, the attack surface is broadened by the fact that the vulnerability exists in a core profile management function that likely handles user authentication and authorization data.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and parameterized queries throughout the application codebase. The most effective immediate fix involves implementing prepared statements or parameterized queries to separate sql code from user input, thereby preventing malicious sql from being executed. Input sanitization mechanisms should be strengthened to reject or escape special characters that could be used in sql injection attacks. Additionally, the application should implement proper output encoding when displaying database results to prevent potential cross-site scripting attacks that could compound the vulnerability. Security monitoring should be enhanced to detect unusual database access patterns and sql injection attempts, while regular security audits should be conducted to identify similar vulnerabilities in other application components. Organizations should also consider implementing web application firewalls and database activity monitoring solutions to provide additional layers of protection against such attacks.