CVE-2017-17586 in FS Olx Clone
Summary
by MITRE
FS Olx Clone 1.0 has SQL Injection via the subpage.php scat parameter or the message.php pid parameter.
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Analysis
by VulDB Data Team • 09/05/2025
The CVE-2017-17586 vulnerability affects FS Olx Clone version 1.0, a web application designed to replicate the functionality of the popular classified advertising platform OLX. This vulnerability represents a critical security flaw that allows remote attackers to execute arbitrary SQL commands against the application's database through specifically crafted input parameters. The vulnerability exists within the application's handling of user-supplied data in two distinct endpoints: subpage.php where the scat parameter is processed, and message.php where the pid parameter is utilized. Both parameters are susceptible to SQL injection attacks due to inadequate input validation and sanitization mechanisms.
The technical flaw stems from improper parameter handling within the application's backend code where user inputs are directly concatenated into SQL query strings without appropriate escaping or parameterization. When an attacker submits malicious input through either the scat or pid parameters, the application fails to properly sanitize this data before incorporating it into database queries. This allows attackers to inject malicious SQL code that can manipulate the database structure, extract sensitive information, modify data, or even gain unauthorized access to the underlying database system. The vulnerability follows the common pattern of insecure direct object reference and improper input validation that falls under CWE-89, which specifically addresses SQL injection flaws.
The operational impact of this vulnerability is severe and multifaceted for any organization utilizing FS Olx Clone 1.0. Attackers can potentially extract confidential user data including personal information, contact details, and classified advertisement content. The vulnerability also enables data manipulation attacks that could compromise the integrity of the entire classified advertising platform. Additionally, successful exploitation could lead to complete database compromise, allowing attackers to escalate privileges and potentially move laterally within the network infrastructure. This vulnerability directly maps to several ATT&CK techniques including T1071.004 for application layer protocol manipulation and T1190 for exploitation of remote services. Organizations may face regulatory compliance violations and significant reputational damage if user data is compromised, as the vulnerability exposes sensitive information that could be used for identity theft or other malicious activities.
Mitigation strategies for CVE-2017-17586 should prioritize immediate implementation of proper input validation and parameterized queries. The most effective remediation involves implementing prepared statements or parameterized queries throughout the application codebase, ensuring that user inputs are never directly concatenated into SQL commands. Input validation should be enforced at multiple layers including client-side and server-side validation with strict sanitization of all parameters. Organizations should also implement proper error handling that does not expose database structure information to end users. Network-level protections such as web application firewalls can provide additional defense-in-depth measures, though they should not be considered a replacement for proper code-level fixes. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other application components. The vulnerability highlights the importance of following secure coding practices and adheres to OWASP Top 10 security guidelines, specifically addressing the SQL injection category that has consistently ranked among the most critical web application security risks since 2007.