CVE-2020-28994 in Multiple Restaurant System
Summary
by MITRE • 11/25/2020
A SQL injection vulnerability was discovered in Karenderia Multiple Restaurant System, affecting versions 5.4.2 and below. The vulnerability allows for an unauthenticated attacker to perform various tasks such as modifying and leaking all contents of the database.
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Analysis
by VulDB Data Team • 12/10/2020
The vulnerability identified as CVE-2020-28994 represents a critical SQL injection flaw within the Karenderia Multiple Restaurant System platform, impacting all versions through 5.4.2. This vulnerability stems from inadequate input validation and sanitization mechanisms within the application's database interaction layers, creating an exploitable condition that fundamentally compromises the system's data integrity and confidentiality. The flaw exists in the application's handling of user-supplied parameters that are directly incorporated into SQL query construction without proper escaping or parameterization techniques.
The technical exploitation of this vulnerability occurs when an unauthenticated attacker crafts malicious input that bypasses the application's security controls and injects arbitrary SQL commands into the backend database. This allows the attacker to execute unauthorized queries against the database, potentially gaining access to sensitive information including user credentials, customer data, order histories, and other proprietary business information. The vulnerability's classification aligns with CWE-89, which specifically addresses SQL injection flaws where untrusted data is incorporated into SQL commands without proper validation or escaping mechanisms. The attack vector typically involves manipulating form inputs, URL parameters, or API endpoints that are processed by the application's database layer.
The operational impact of this vulnerability extends beyond simple data theft, as it enables attackers to perform comprehensive database manipulation operations including data modification, deletion, and unauthorized access to administrative functions. An attacker could potentially escalate privileges within the system, gain persistence through backdoor creation, or even execute arbitrary code on the underlying database server. The unauthenticated nature of the attack means that no prior access credentials are required, making this vulnerability particularly dangerous as it can be exploited by anyone with network access to the affected system. This vulnerability directly violates the principles of data confidentiality, integrity, and availability as outlined in the CIA triad, potentially causing significant business disruption and regulatory compliance violations.
Organizations affected by this vulnerability should immediately implement mitigation strategies including input validation, parameterized queries, and web application firewall deployment to prevent exploitation attempts. The recommended remediation approach involves upgrading to the patched version of the Karenderia Multiple Restaurant System, implementing proper database query sanitization, and conducting comprehensive security testing to identify similar vulnerabilities within the application's codebase. Additionally, implementing network segmentation, access controls, and regular security audits can help reduce the attack surface and limit potential damage from exploitation attempts. The vulnerability demonstrates the critical importance of following secure coding practices and adhering to OWASP Top Ten security guidelines to prevent such database-related vulnerabilities from compromising enterprise systems.