CVE-2007-1059 in Ultimate Fun Book
Summary
by MITRE
PHP remote file inclusion vulnerability in function.php in Ultimate Fun Book 1.02 allows remote attackers to execute arbitrary PHP code via a URL in the gbpfad parameter. NOTE: some sources mention "Ultimate Fun Board," but this appears to be an error.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 08/24/2024
The vulnerability identified as CVE-2007-1059 represents a critical remote file inclusion flaw in the Ultimate Fun Book 1.02 web application, specifically within the function.php file. This vulnerability stems from improper input validation and sanitization mechanisms that fail to adequately filter user-supplied data before using it in dynamic file inclusion operations. The flaw manifests when the application processes the gbpfad parameter without sufficient security controls, allowing malicious actors to inject arbitrary URLs that are subsequently included and executed as PHP code. This type of vulnerability falls under the category of CWE-88, which describes improper neutralization of special elements used in an expression, and more specifically aligns with CWE-94, which addresses the execution of arbitrary code or commands. The vulnerability operates at the application layer and can be classified as a server-side include attack vector that bypasses normal access controls and authentication mechanisms.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing PHP code within the gbpfad parameter of the function.php script. When the vulnerable application processes this input, it dynamically includes the remote file specified in the parameter, executing any PHP code contained within that file. This creates a pathway for remote code execution that can be leveraged to gain complete control over the affected web server. The attack vector operates through standard HTTP requests and can be performed without any authentication requirements, making it particularly dangerous for publicly accessible web applications. The vulnerability demonstrates a classic lack of input validation and secure coding practices, where user-controllable parameters are directly used in file inclusion functions without proper sanitization or whitelisting mechanisms. This flaw enables attackers to perform operations such as arbitrary code execution, data exfiltration, and system compromise, all while remaining hidden within legitimate web application traffic.
The operational impact of CVE-2007-1059 extends far beyond simple code execution, as it fundamentally compromises the security posture of any system running the vulnerable Ultimate Fun Book 1.02 software. Successful exploitation can result in complete system compromise, allowing attackers to establish persistent backdoors, escalate privileges, and access sensitive data stored on the affected server. The vulnerability can be exploited through various attack methods including web shell deployment, database access, and network reconnaissance activities. From an attacker's perspective, this vulnerability maps directly to the ATT&CK technique T1059.007, which describes the execution of remote code through web shells and command injection techniques. The impact is particularly severe because it affects the underlying web server infrastructure, potentially enabling attackers to use the compromised system as a pivot point for attacking internal networks or to establish a persistent presence for long-term reconnaissance and data theft operations.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security improvements in the affected application. The primary fix involves implementing proper input validation and sanitization for all user-supplied parameters, particularly those used in dynamic file inclusion operations. Developers should employ whitelisting approaches where only predefined, trusted file paths are allowed for inclusion, rather than accepting arbitrary URLs from user input. The application should also implement proper parameter validation using regular expressions and length restrictions to prevent malicious input from being processed. Additionally, the web server configuration should be reviewed to ensure that remote file inclusion is disabled or restricted through proper php.ini settings. Security measures should include implementing web application firewalls that can detect and block suspicious patterns in URL parameters, as well as regular security audits and code reviews to identify similar vulnerabilities in other parts of the application. Organizations should also consider implementing network segmentation and monitoring solutions to detect unusual outbound connections that might indicate successful exploitation attempts. The vulnerability highlights the critical importance of following secure coding practices and adhering to established security frameworks such as the OWASP Top Ten, which emphasizes the need for proper input validation and output encoding to prevent injection attacks and remote code execution vulnerabilities.