CVE-2024-40071 in Online ID Generator System
Summary
by MITRE • 04/16/2025
Sourcecodester Online ID Generator System 1.0 was discovered to contain an arbitrary file upload vulnerability via id_generator/classes/SystemSettings.php?f=update_settings. This vulnerability allows attackers to execute arbitrary code via a crafted PHP file.
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Analysis
by VulDB Data Team • 04/16/2025
The vulnerability identified as CVE-2024-40071 resides within the Sourcecodester Online ID Generator System version 1.0, specifically in the file id_generator/classes/SystemSettings.php through the parameter f=update_settings. This represents a critical security flaw that exposes the system to arbitrary file upload attacks, enabling remote code execution capabilities for malicious actors. The vulnerability stems from insufficient input validation and inadequate file type restrictions within the application's file upload mechanism, allowing attackers to bypass security controls and upload malicious files to the server.
This arbitrary file upload vulnerability falls under the CWE-434 category, which specifically addresses "Unrestricted Upload of File with Dangerous Type," and aligns with ATT&CK technique T1195.001 for "Upload Files and Scripts" and T1059.007 for "Command and Scripting Interpreter: PowerShell." The flaw enables attackers to upload PHP files containing malicious code that can be executed within the web server context, potentially leading to complete system compromise. The vulnerability exists because the application fails to properly validate file extensions, content types, or file contents before storing uploaded files, creating an attack surface where malicious payloads can be seamlessly integrated into the system's file structure.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with persistent access to the compromised system. Once an attacker successfully uploads a malicious PHP file, they can execute commands on the server, potentially gaining administrative privileges, accessing sensitive data, or using the compromised system as a launching point for further attacks within the network. The vulnerability affects the entire application's integrity and availability, as attackers can modify system configurations, inject backdoors, or deploy additional malware. The compromised system may also serve as a pivot point for lateral movement attacks, particularly in environments where the application is part of a larger network infrastructure.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security enhancements. The primary fix involves implementing strict file validation mechanisms that check file extensions, MIME types, and content signatures before allowing uploads. The system should employ a whitelist approach for acceptable file types, reject executable files, and sanitize all uploaded content. Additionally, uploaded files should be stored in a separate directory with restricted permissions and should not be directly executable by the web server. Organizations should implement proper input validation, use secure file handling practices, and ensure that the application follows the principle of least privilege. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities, while also implementing network segmentation and monitoring solutions to detect anomalous file upload activities that could indicate exploitation attempts.