CVE-2015-3934 in Fiyo
Summary
by MITRE
Multiple SQL injection vulnerabilities in Fiyo CMS 2.0_1.9.1 allow remote attackers to execute arbitrary SQL commands via the (1) id parameter to apps/app_article/controller/rating.php or (2) user parameter to user/login.
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Analysis
by VulDB Data Team • 01/19/2025
The vulnerability CVE-2015-3934 represents a critical SQL injection flaw affecting Fiyo CMS versions 2.0 through 1.9.1, demonstrating a fundamental weakness in input validation and query construction practices. This vulnerability manifests through two distinct attack vectors that exploit improper sanitization of user-supplied data, allowing malicious actors to inject arbitrary SQL commands into the application's database layer. The first vector targets the id parameter within the apps/app_article/controller/rating.php file, while the second exploits the user parameter during the user/login process, both creating pathways for unauthorized database access and manipulation.
The technical exploitation of this vulnerability occurs when the application fails to properly escape or validate input parameters before incorporating them into SQL queries. When an attacker submits malicious input through either the id or user parameters, the application processes these inputs directly without adequate sanitization, enabling the execution of unintended SQL commands. This flaw directly maps to CWE-89, which classifies SQL injection as a weakness where untrusted data is incorporated into SQL queries without proper validation or escaping mechanisms. The vulnerability's severity is amplified by its remote nature, allowing attackers to exploit it from external networks without requiring local system access or authentication.
The operational impact of CVE-2015-3934 extends beyond simple data theft, as successful exploitation can lead to complete database compromise, unauthorized user account creation, data modification, and potential lateral movement within affected systems. Attackers can leverage this vulnerability to extract sensitive information such as user credentials, personal data, and application configuration details. The attack surface is particularly concerning given that the vulnerability affects the core authentication and content management components of the CMS, potentially providing attackers with persistent access to the application environment. According to ATT&CK framework category T1190, this vulnerability represents a technique for exploiting remote services through injection attacks, while also aligning with T1071 for application layer protocol usage.
Mitigation strategies for this vulnerability require immediate implementation of proper input validation and parameterized query construction across all application components. System administrators should implement web application firewalls to detect and block suspicious SQL injection patterns, while also applying the latest security patches provided by the Fiyo CMS vendor. The remediation process must include thorough code review to ensure all input parameters are properly sanitized, with particular attention to the specific file paths mentioned in the vulnerability description. Additionally, implementing principle of least privilege access controls, regular database audits, and comprehensive monitoring of database activities can help detect and prevent exploitation attempts. Organizations should also consider implementing database activity monitoring solutions to identify anomalous SQL execution patterns that may indicate successful exploitation of similar vulnerabilities. The vulnerability serves as a critical reminder of the importance of secure coding practices and regular security assessments to prevent the persistence of such dangerous flaws in web applications.