CVE-2024-49331 in Property Lot Management System Plugin
Summary
by MITRE • 10/20/2024
Unrestricted Upload of File with Dangerous Type vulnerability in Myriad Solutionz Property Lot Management System plms allows Upload a Web Shell to a Web Server.This issue affects Property Lot Management System: from n/a through <= 4.2.38.
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Analysis
by VulDB Data Team • 04/06/2026
The vulnerability CVE-2024-49331 represents a critical security flaw in the Myriad Solutionz Property Lot Management System plms that enables unauthorized file upload capabilities with potentially devastating consequences. This unrestricted file upload vulnerability specifically targets the system's file handling mechanisms, allowing malicious actors to bypass normal security controls and upload files with dangerous extensions directly to the web server. The affected version range spans from the initial release through version 4.2.38, indicating this weakness has persisted across multiple iterations of the software. The vulnerability's classification aligns with CWE-434, which addresses the improper restriction of uploads of file with dangerous types, making it a well-documented and serious security concern within the software development lifecycle.
The technical implementation of this vulnerability stems from insufficient validation and sanitization of file upload operations within the property lot management system. When users attempt to upload files through the web interface, the system fails to properly verify the file type, extension, or content, creating an opening for attackers to submit malicious files including web shells, executable code, or other dangerous payloads. The flaw likely exists in the server-side file handling logic where file extensions are not adequately checked against a whitelist of allowed types, or where the system relies on client-side validation that can be easily bypassed. This weakness essentially provides attackers with a direct pathway to execute arbitrary code on the target server, as demonstrated by the ability to upload web shells that can then be accessed through the web server interface.
The operational impact of CVE-2024-49331 is severe and multifaceted, potentially allowing complete system compromise and unauthorized access to sensitive property management data. Once an attacker successfully uploads a web shell, they gain persistent access to the server environment, enabling them to escalate privileges, exfiltrate data, modify property records, or even use the compromised system as a launch point for further attacks within the network. The vulnerability creates a persistent backdoor that can remain undetected for extended periods, as the uploaded shell files often blend in with legitimate system files. This threat is particularly concerning for property management systems that handle sensitive personal and financial information, as the compromise could lead to identity theft, financial fraud, or unauthorized property transactions. The vulnerability also aligns with ATT&CK technique T1190, which covers the exploitation of vulnerable web applications for initial access and persistence.
Mitigation strategies for CVE-2024-49331 must address both immediate remediation and long-term architectural improvements to prevent similar vulnerabilities. Organizations should immediately implement strict file type validation by maintaining comprehensive whitelists of allowed file extensions and rejecting all others, while also implementing content-based file verification to ensure uploaded files match their claimed types. The system should enforce proper file naming conventions, remove execute permissions from upload directories, and implement secure file storage practices that separate uploaded content from executable code. Additionally, the web application should be configured to use secure file upload mechanisms that validate file content against known signatures and reject potentially malicious files based on multiple criteria. Regular security assessments and penetration testing should be conducted to identify and remediate similar vulnerabilities, while also implementing network segmentation to limit the potential impact of successful exploitation. The vulnerability demonstrates the critical importance of defense-in-depth strategies and proper input validation in web application security, as highlighted in industry standards and best practices for secure software development lifecycle implementation.