CVE-2021-41471 in South Gate Inn Online Reservation System
Summary
by MITRE • 01/24/2022
SQL injection vulnerability in Sourcecodester South Gate Inn Online Reservation System v1 by oretnom23, allows attackers to execute arbitrary SQL commands via the email and Password parameters.
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Analysis
by VulDB Data Team • 01/28/2022
The CVE-2021-41471 vulnerability represents a critical sql injection flaw in the South Gate Inn Online Reservation System version 1, developed by oretnom23. This vulnerability exists within the authentication mechanism of the web application, specifically targeting the email and password parameters that are processed during user login attempts. The flaw stems from inadequate input validation and sanitization practices within the application's backend database interaction code, creating an exploitable pathway for malicious actors to manipulate the underlying sql queries.
The technical implementation of this vulnerability occurs when user-supplied input for email and password parameters is directly concatenated into sql query strings without proper parameterization or escaping mechanisms. This allows attackers to inject malicious sql payloads that can alter the intended query execution flow. When an attacker submits specially crafted input containing sql metacharacters and commands, the application processes these inputs without adequate filtering, enabling the database to execute unintended sql operations. The vulnerability specifically affects the authentication module where user credentials are validated against the database, making it particularly dangerous as it can potentially grant unauthorized access to the system.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with extensive privileges within the affected system. Successful exploitation could enable attackers to extract sensitive user information including stored passwords, personal details, and reservation data from the database. Additionally, attackers might be able to modify or delete records, create new user accounts with administrative privileges, or even escalate their access to perform database-level operations. The vulnerability affects the confidentiality, integrity, and availability of the reservation system, potentially disrupting business operations and exposing sensitive guest information. According to CWE classification, this represents a CWE-89 sql injection weakness, which is categorized under the broader category of injection flaws that consistently rank among the top cybersecurity vulnerabilities.
Mitigation strategies for CVE-2021-41471 should focus on implementing proper input validation, parameterized queries, and prepared statements to prevent sql injection attacks. Organizations should immediately apply patches or updates provided by the vendor to address the vulnerability, while also implementing web application firewalls to detect and block malicious sql injection attempts. Additionally, security measures such as input sanitization, output encoding, and least privilege database access controls should be implemented to reduce the potential impact of any successful exploitation attempts. The vulnerability aligns with several ATT&CK techniques including T1190 for exploit public-facing application and T1071.004 for application layer protocol network communication protocols, highlighting the need for comprehensive defensive measures across multiple attack surface areas.