CVE-2021-36624 in Phone Shop Sales Managements System
Summary
by MITRE • 07/30/2021
Sourcecodester Phone Shop Sales Managements System version 1.0 suffers from a remote SQL injection vulnerability that allows for authentication bypass.
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Analysis
by VulDB Data Team • 08/06/2021
The CVE-2021-36624 vulnerability affects the Sourcecodester Phone Shop Sales Management System version 1.0 and represents a critical remote SQL injection flaw that can be exploited to achieve authentication bypass. This vulnerability resides within the system's input validation mechanisms and demonstrates a classic weakness in database interaction handling that has been documented under CWE-89. The flaw allows an attacker to manipulate SQL queries through user input fields, potentially enabling unauthorized access to the system's backend database and administrative functions.
The technical implementation of this vulnerability occurs when the application fails to properly sanitize or escape user-supplied input before incorporating it into SQL database queries. Attackers can construct malicious SQL payloads that, when executed, alter the intended query logic to bypass authentication checks. This type of vulnerability falls under the ATT&CK framework's T1190 technique for exploitation of remote services and T1078 for valid accounts. The system's authentication mechanism becomes compromised when an attacker can manipulate database queries to either retrieve administrative credentials or directly manipulate access control logic without proper authentication.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with full administrative access to the phone shop management system. Once authenticated, malicious actors can modify customer data, manipulate sales records, access sensitive financial information, and potentially disrupt business operations. The remote nature of the exploit means that attackers do not require physical access to the system or network, making it particularly dangerous for organizations that rely on web-based management solutions. This vulnerability directly affects the integrity and confidentiality of the system's data, potentially leading to financial loss and regulatory compliance issues.
Mitigation strategies for CVE-2021-36624 should include immediate patching of the affected system to address the SQL injection vulnerability in the authentication module. Organizations must implement proper input validation and parameterized queries to prevent malicious SQL code from being executed. Additionally, network segmentation and access controls should be strengthened to limit potential attack vectors. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other applications. The implementation of web application firewalls and database activity monitoring can provide additional layers of protection against exploitation attempts. Organizations should also ensure that all database connections use least privilege principles and that proper logging mechanisms are in place to detect unauthorized access attempts. This vulnerability highlights the critical importance of secure coding practices and regular security maintenance in preventing remote code execution and authentication bypass attacks that can compromise entire system infrastructures.