CVE-2021-41647 in Online Food Ordering Web App
Summary
by MITRE • 10/02/2021
An un-authenticated error-based and time-based blind SQL injection vulnerability exists in Kaushik Jadhav Online Food Ordering Web App 1.0. An attacker can exploit the vulnerable "username" parameter in login.php and retrieve sensitive database information, as well as add an administrative user.
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Analysis
by VulDB Data Team • 10/08/2021
The vulnerability identified as CVE-2021-41647 represents a critical security flaw in the Kaushik Jadhav Online Food Ordering Web App version 1.0, specifically targeting the authentication mechanism through SQL injection attacks. This weakness enables unauthorized individuals to manipulate the application's database queries without proper authentication, creating a significant risk for sensitive data exposure and system compromise. The vulnerability manifests through the username parameter within the login.php script, which serves as the primary attack vector for exploiting the underlying database structure.
The technical implementation of this vulnerability follows classic error-based and time-based blind SQL injection techniques that allow attackers to extract database information through indirect means. In error-based injection, the application reveals database error messages that contain sensitive information about the database structure, while time-based blind injection relies on manipulating query execution time to infer database contents through conditional responses. The attacker can leverage these methods to enumerate database schemas, extract user credentials, and potentially escalate privileges within the system. This vulnerability directly maps to CWE-89, which categorizes SQL injection flaws as weaknesses that allow attackers to execute arbitrary SQL commands through untrusted input.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to add administrative users to the system. This privilege escalation capability transforms a simple information disclosure threat into a complete system compromise risk. Once an attacker successfully exploits the SQL injection vulnerability, they can manipulate the user authentication system to create new administrative accounts, potentially maintaining persistent access to the application. The implications for the online food ordering platform are severe, as it could lead to complete system takeover, data manipulation, and unauthorized transaction processing. This vulnerability affects the confidentiality, integrity, and availability of the entire application infrastructure.
Security professionals should implement multiple layers of defense to mitigate this vulnerability, beginning with immediate patching of the affected application version. Input validation and parameterized queries should be implemented throughout the application to prevent SQL injection attacks, while also enforcing proper authentication mechanisms and access controls. Network segmentation and intrusion detection systems can help identify exploitation attempts, while regular security assessments and code reviews should be conducted to prevent similar vulnerabilities in future development cycles. The ATT&CK framework categorizes this vulnerability under T1190 for exploit public-facing application and T1078 for valid accounts, highlighting the need for comprehensive monitoring and access control measures. Organizations should also consider implementing web application firewalls to detect and block malicious SQL injection attempts, while maintaining detailed audit logs to track any potential exploitation activities.