CVE-2022-31340 in Simple Inventory System
Summary
by MITRE • 06/02/2022
Simple Inventory System v1.0 is vulnerable to SQL Injection via /inventory/table_edit_ajax.php.
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Analysis
by VulDB Data Team • 06/04/2022
The Simple Inventory System version 1.0 presents a critical security vulnerability classified as SQL Injection through its /inventory/table_edit_ajax.php endpoint. This vulnerability arises from insufficient input validation and improper parameter handling within the application's database interaction logic, creating an exploitable pathway for malicious actors to manipulate backend database queries. The flaw specifically manifests when user-supplied data is directly incorporated into SQL command structures without adequate sanitization or preparation mechanisms.
The technical implementation of this vulnerability stems from the application's failure to employ proper prepared statements or parameterized queries when processing requests to the table_edit_ajax.php script. Attackers can craft malicious SQL payloads through the input fields that feed into this endpoint, allowing them to execute arbitrary database commands. This type of vulnerability falls under the Common Weakness Enumeration category CWE-89, which specifically addresses SQL injection flaws where untrusted data is concatenated into SQL queries without proper escaping or parameterization. The attack vector is particularly concerning as it targets an AJAX endpoint, suggesting the vulnerability could be exploited through web-based interfaces without requiring direct database access or elevated privileges.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with comprehensive database access capabilities. Successful exploitation could enable unauthorized users to extract sensitive information including user credentials, inventory data, system configurations, and potentially sensitive business intelligence. The vulnerability's accessibility through a web interface means that even remotely located attackers could leverage this flaw without requiring physical system access. Additionally, the compromised system could serve as a staging ground for further attacks, potentially enabling privilege escalation or lateral movement within network environments where the inventory system operates.
Security professionals should implement immediate mitigations including input validation, parameterized queries, and proper output encoding to prevent SQL injection exploitation. The recommended defense-in-depth approach involves deploying web application firewalls to monitor and filter malicious SQL patterns, implementing least privilege database user accounts with restricted permissions, and conducting comprehensive code reviews to identify similar vulnerabilities throughout the application codebase. Organizations should also consider implementing database activity monitoring solutions to detect anomalous SQL query patterns that might indicate exploitation attempts. The vulnerability demonstrates the critical importance of adhering to secure coding practices and following the ATT&CK framework's mitigation strategies for preventing injection attacks, particularly in web applications that handle sensitive data through database interactions.