CVE-2017-17609 in Chartered Accountant Booking Script
Summary
by MITRE
Chartered Accountant Booking Script 1.0 has SQL Injection via the /service-list city parameter.
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Analysis
by VulDB Data Team • 08/23/2025
The vulnerability identified as CVE-2017-17609 represents a critical SQL injection flaw within the Chartered Accountant Booking Script version 1.0, specifically targeting the /service-list endpoint where the city parameter is susceptible to malicious input manipulation. This vulnerability resides in the web application's input validation mechanisms, where user-supplied data fails to undergo proper sanitization before being incorporated into database queries. The flaw allows attackers to inject arbitrary SQL code through the city parameter, potentially enabling them to extract, modify, or delete sensitive data from the underlying database system. The vulnerability directly maps to CWE-89 which categorizes SQL injection as a weakness where untrusted data is used in SQL commands without proper validation or escaping mechanisms. This type of vulnerability falls under the ATT&CK technique T1071.004 which describes application layer protocol manipulation, specifically targeting web applications through injection flaws.
The technical exploitation of this vulnerability occurs when an attacker submits malicious SQL payload through the city parameter in the /service-list URL endpoint. The application processes this input directly into database queries without adequate input filtering or parameterized query construction, allowing the attacker to manipulate the intended database operation. Successful exploitation could enable an attacker to perform unauthorized database operations including but not limited to data exfiltration, data modification, privilege escalation, or even remote code execution depending on the database configuration and the application's privileges. The vulnerability demonstrates poor input validation practices and highlights the critical importance of implementing proper parameterized queries or prepared statements to prevent such injection attacks. Attackers could leverage this vulnerability to access sensitive client information, financial records, or personal data stored within the booking system's database.
The operational impact of CVE-2017-17609 extends beyond immediate data compromise to encompass potential business disruption, regulatory compliance violations, and reputational damage for the chartered accountancy firm utilizing this booking script. Organizations relying on this vulnerable system face risks of unauthorized access to confidential client information, which could lead to financial fraud, identity theft, or breach of professional confidentiality obligations. The vulnerability affects the integrity and confidentiality of the entire booking system, potentially compromising all services and data managed through the application. Security incidents resulting from such vulnerabilities often trigger regulatory investigations, mandatory breach notifications, and potential legal consequences under data protection legislation such as gdpr or similar privacy regulations. The attack surface is particularly concerning given that the vulnerability exists in a booking script that likely handles sensitive financial and personal information from clients seeking accounting services.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security improvements. The primary recommendation involves implementing proper input validation and parameterized queries throughout the application codebase, specifically ensuring that all user inputs are sanitized before database interaction. Developers should adopt prepared statements or parameterized queries to prevent SQL injection attacks, as this approach effectively separates SQL code from data. Additionally, implementing proper access controls, input length restrictions, and output encoding can significantly reduce exploitation risk. Organizations should conduct regular security assessments and code reviews to identify similar vulnerabilities across the entire application stack. The implementation of web application firewalls and intrusion detection systems can provide additional layers of protection, while regular security training for development teams helps prevent similar coding flaws in future releases. System administrators should also monitor database activities for suspicious queries and implement proper logging mechanisms to detect potential exploitation attempts. The vulnerability underscores the necessity of following secure coding practices and adhering to established security frameworks such as owasp top ten and iso 27001 standards for application security.