CVE-2021-46005 in Car Rental Management System
Summary
by MITRE • 01/18/2022
Sourcecodester Car Rental Management System 1.0 is vulnerable to Cross Site Scripting (XSS) via vehicalorcview parameter.
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Analysis
by VulDB Data Team • 01/26/2022
The CVE-2021-46005 vulnerability affects the Sourcecodester Car Rental Management System version 1.0, representing a critical cross site scripting flaw that exposes the application to malicious code injection attacks. This vulnerability specifically manifests through the vehicalorcview parameter, which fails to properly sanitize user input before processing and rendering. The flaw allows attackers to inject malicious scripts into the application's response, potentially compromising user sessions and data integrity. The vulnerability stems from inadequate input validation and output encoding practices within the system's parameter handling mechanisms, creating an exploitable entry point for cyber adversaries seeking to manipulate the web application's behavior.
The technical implementation of this XSS vulnerability occurs when the vehicalorcview parameter receives unvalidated input from user requests without proper sanitization or encoding. When the application processes this parameter and incorporates it directly into the HTML response without appropriate security measures, it creates an environment where malicious scripts can execute within the context of other users' browsers. This type of vulnerability falls under CWE-79 which specifically addresses cross site scripting flaws in software applications. The vulnerability exists at the application layer where user-supplied data is not adequately filtered or escaped before being rendered in web pages, enabling attackers to execute arbitrary JavaScript code in the victim's browser context.
The operational impact of this vulnerability extends beyond simple script execution, potentially allowing attackers to perform session hijacking, steal sensitive user information, manipulate application data, or redirect users to malicious websites. An attacker could exploit this vulnerability to access administrative functions, modify car rental records, or compromise the personal information of users interacting with the system. The vulnerability's severity is heightened by its location within a car rental management system, which likely handles sensitive customer data including personal identification, contact information, and financial details. This exposure creates significant risk for both individual users and the organization operating the system, as successful exploitation could lead to data breaches, regulatory compliance violations, and reputational damage.
Mitigation strategies for CVE-2021-46005 should focus on implementing robust input validation and output encoding mechanisms throughout the application's codebase. The most effective approach involves sanitizing all user-supplied input through proper encoding techniques such as HTML entity encoding, JavaScript escaping, and using parameterized queries where applicable. Security measures should include implementing Content Security Policy headers to restrict script execution, employing proper input validation frameworks, and conducting regular security code reviews. Additionally, the system should utilize secure coding practices that prevent direct insertion of user data into HTML responses without proper sanitization, aligning with ATT&CK technique T1203 which covers exploitation of web application vulnerabilities. Organizations should also implement automated security testing including dynamic application security testing and regular penetration testing to identify similar vulnerabilities within their web applications. The remediation process requires immediate patching of the affected parameter handling logic and comprehensive security auditing of all user input processing functions to ensure similar flaws do not exist elsewhere in the application.