CVE-2012-4055 in Fan Club
Summary
by MITRE
SQL injection vulnerability in index2.php in Uiga Fan Club allows remote attackers to execute arbitrary SQL commands via the p parameter.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 05/15/2025
The CVE-2012-4055 vulnerability represents a critical sql injection flaw discovered in the uiga fan club web application's index2.php script. This vulnerability specifically affects the parameter handling mechanism where the 'p' parameter is processed without adequate input validation or sanitization. The flaw exists within the web application's database interaction logic, creating an exploitable condition that allows remote attackers to manipulate the underlying sql queries through crafted malicious input.
The technical implementation of this vulnerability stems from improper parameter binding and input sanitization practices within the php application code. When the 'p' parameter is submitted through user input, the application directly incorporates this value into sql query construction without appropriate escaping or parameterization techniques. This primitive approach to database interaction creates a direct pathway for attackers to inject malicious sql payloads that can be executed within the context of the database connection. The vulnerability aligns with CWE-89 which categorizes sql injection as a fundamental weakness in software applications where untrusted data is incorporated into sql commands without proper validation or escaping mechanisms.
Operationally, this vulnerability presents a severe risk to the affected web application and its underlying database infrastructure. Remote attackers can exploit this flaw to execute arbitrary sql commands, potentially gaining unauthorized access to sensitive data, modifying database contents, or even escalating privileges within the database system. The impact extends beyond simple data theft as attackers could potentially establish persistent access through database backdoors, execute system commands, or perform data manipulation that could compromise the integrity and availability of the entire application. The vulnerability's remote exploitability means that attackers do not require physical access to the system and can target the application from any location with internet connectivity.
The attack surface for this vulnerability is particularly concerning as it affects a fan club web application that likely handles user registration data, personal information, and potentially payment details. The exploitation process typically involves crafting malicious input that bypasses normal parameter validation and injects sql syntax that alters the intended query execution flow. Attackers may leverage this vulnerability to extract user credentials, personal information, or other sensitive data stored in the database. The attack vector aligns with ATT&CK technique T1071.004 which covers application layer protocol manipulation, specifically targeting web application vulnerabilities to gain unauthorized access and execute malicious code within the target environment.
Mitigation strategies for this vulnerability should focus on implementing proper input validation, parameterized queries, and secure coding practices throughout the application development lifecycle. The most effective immediate fix involves implementing proper sql parameterization techniques that separate sql command structure from data values, ensuring that user input is never directly concatenated into sql queries. Organizations should also implement web application firewalls to detect and block suspicious sql injection patterns, conduct regular security code reviews, and apply comprehensive input sanitization measures. Additionally, implementing least privilege database access controls and regular security assessments can help reduce the potential impact of successful exploitation attempts. The remediation approach should follow industry best practices outlined in standards such as OWASP Top 10 and NIST cybersecurity guidelines for preventing sql injection vulnerabilities.