CVE-2022-32020 in Car Rental Management System
Summary
by MITRE • 06/02/2022
Car Rental Management System v1.0 is vulnerable to Arbitrary code execution via ip/car-rental-management-system/admin/ajax.php?action=save_settings.
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Analysis
by VulDB Data Team • 06/04/2022
The Car Rental Management System version 1.0 presents a critical security vulnerability that allows attackers to execute arbitrary code through a specifically crafted request to the administrative interface. This vulnerability exists within the ajax.php endpoint where the system processes administrative actions, specifically the save_settings functionality that handles configuration updates. The flaw represents a classic command injection vulnerability that stems from inadequate input validation and sanitization of user-supplied data.
The technical implementation of this vulnerability stems from the system's failure to properly validate or sanitize parameters passed to the save_settings action. When administrators interact with the system's administrative panel, the ajax.php script processes these requests without sufficient verification of input data integrity. This lack of proper sanitization creates an opportunity for malicious actors to inject and execute arbitrary code within the system's execution context. The vulnerability is particularly dangerous because it operates within the administrative interface, which typically possesses elevated privileges and access to sensitive system resources. Attackers can leverage this weakness to gain unauthorized access to the underlying system, potentially leading to complete system compromise.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with the capability to manipulate the entire rental management system. Successful exploitation could enable unauthorized users to modify system configurations, access sensitive customer data, manipulate rental records, and potentially establish persistent backdoors within the system. The vulnerability affects the confidentiality, integrity, and availability of the system's data, as attackers can modify or delete critical information while simultaneously undermining the system's operational reliability. This flaw particularly impacts organizations relying on the system for managing customer information, vehicle inventory, and rental transactions, creating significant business and regulatory risks.
Mitigation strategies for this vulnerability should include immediate patching of the affected system to address the input validation issues within the ajax.php endpoint. Organizations should implement comprehensive input sanitization and validation mechanisms that prevent malicious code injection attempts. Network segmentation and access control measures should be strengthened to limit administrative access to trusted personnel only. Regular security audits and code reviews should be conducted to identify similar vulnerabilities within the application's codebase. The vulnerability aligns with CWE-77 and CWE-94 categories related to command injection and code execution flaws. From an ATT&CK framework perspective, this vulnerability maps to techniques involving command and scripting interpreters, specifically T1059.007 for Windows command shell and T1059.004 for unix shell, as well as privilege escalation through administrative access. Organizations should also implement web application firewalls and monitoring systems to detect and prevent exploitation attempts targeting similar injection vulnerabilities.