CVE-2024-4927 in Simple Online Bidding System
Summary
by MITRE • 05/16/2024
A vulnerability was found in SourceCodester Simple Online Bidding System 1.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /simple-online-bidding-system/admin/ajax.php?action=save_product. The manipulation leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-264463.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 12/10/2024
The vulnerability identified as CVE-2024-4927 represents a critical security flaw in the SourceCodester Simple Online Bidding System version 1.0, specifically targeting the administrative component of the application. This issue resides within the /simple-online-bidding-system/admin/ajax.php file where the action parameter is processed through the save_product functionality. The vulnerability classification as critical indicates a severe risk to system integrity and data security, particularly given that the flaw enables unrestricted file upload capabilities that can be exploited remotely without requiring any additional authentication or privileges from the attacker's perspective.
The technical nature of this vulnerability stems from inadequate input validation and sanitization within the file upload mechanism of the administrative interface. When an attacker manipulates the save_product action parameter in the ajax.php endpoint, the system fails to properly validate file types, extensions, or content, allowing malicious files to be uploaded to the server without restriction. This represents a direct violation of security principles that should govern file upload operations, where proper validation and sanitization are mandatory to prevent malicious code execution. The vulnerability aligns with CWE-434 which specifically addresses Unrestricted Upload of File with Dangerous Type, and demonstrates how insufficient validation can lead to complete system compromise.
The operational impact of this vulnerability is severe and far-reaching, as it provides attackers with the ability to execute arbitrary code on the target server through the uploaded files. Since the exploit is publicly disclosed and actively being used, the risk to affected systems is immediate and substantial. Attackers can leverage this vulnerability to upload web shells, malware, or other malicious payloads that can then be executed within the context of the web server. This creates a persistent threat vector that can be used for data exfiltration, system compromise, privilege escalation, and potential lateral movement within the network. The remote exploit capability means that attackers do not need physical access to the system or local network presence to carry out these attacks, making the vulnerability particularly dangerous.
Organizations utilizing this specific version of the Simple Online Bidding System must implement immediate remediation measures to address this critical vulnerability. The primary mitigation strategy involves implementing strict file type validation and sanitization within the application's upload handling mechanism, ensuring that only approved file extensions and content types are accepted. Additionally, files should be stored in a non-executable directory with proper access controls, and uploaded files should be scanned for malicious content using multiple antivirus engines. The system should also implement proper authentication and authorization checks to limit access to administrative functions, while monitoring and logging all file upload activities to detect potential exploitation attempts. This vulnerability demonstrates the critical importance of input validation and secure coding practices, as outlined in the OWASP Top Ten and MITRE ATT&CK framework's defensive strategies for preventing code execution vulnerabilities and maintaining system integrity.