CVE-2017-17906 in Car Rental Script
Summary
by MITRE
PHP Scripts Mall Car Rental Script has SQL Injection via the admin/carlistedit.php carid parameter.
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Analysis
by VulDB Data Team • 03/14/2020
The vulnerability identified as CVE-2017-17906 affects the PHP Scripts Mall Car Rental Script, representing a critical security flaw that exposes the application to unauthorized data access and potential system compromise. This issue specifically manifests within the admin/carlistedit.php component where user input is improperly handled, creating an avenue for malicious actors to manipulate database queries through crafted input parameters.
The technical flaw resides in the improper sanitization and validation of the carid parameter within the admin/carlistedit.php script. When administrators access car listing edit functionality, the application fails to adequately filter or escape user-supplied input before incorporating it into SQL query constructions. This vulnerability directly maps to CWE-89, which categorizes SQL injection flaws as weaknesses that occur when an application incorporates untrusted data into SQL commands without proper validation or escaping mechanisms. The absence of input validation creates a condition where attackers can inject malicious SQL code that executes with the privileges of the database user associated with the web application.
The operational impact of this vulnerability extends beyond simple data theft, potentially allowing attackers to escalate privileges, extract sensitive information including administrative credentials, customer data, and financial records, or even modify or delete critical database entries. Given that the vulnerability exists within the administrative interface of the car rental system, successful exploitation could provide attackers with complete control over the application's data management functions. This scenario aligns with ATT&CK technique T1071.004, which describes the use of application layer protocols for command and control communications, as the attacker could leverage this vulnerability to establish persistent access to the system's database infrastructure.
The exploitation of this vulnerability requires minimal technical expertise and can be accomplished through standard SQL injection techniques, making it particularly dangerous as it can be targeted by automated scanning tools and script kiddies. Attackers can craft malicious requests containing SQL payload strings that manipulate the carid parameter to execute unauthorized database operations. The vulnerability affects the entire administrative functionality of the car rental system, potentially compromising the integrity and confidentiality of all vehicle listings, reservation data, and user account information stored within the database.
Mitigation strategies should prioritize immediate patching of the vulnerable application to address the input validation flaw. Organizations must implement proper parameterized queries or prepared statements throughout the application codebase to prevent similar vulnerabilities from occurring. Input validation should be enforced at multiple layers including the application interface, database level, and network perimeter controls. Regular security assessments and code reviews should be conducted to identify and remediate potential injection vulnerabilities. Additionally, implementing database access controls and privilege separation can limit the damage potential from successful exploitation attempts. The fix should also include proper error handling to prevent information disclosure and ensure that database errors do not reveal sensitive system information to unauthorized users, as outlined in security best practices for preventing SQL injection attacks and maintaining application integrity.