CVE-2025-1593 in Best Employee Management System
Summary
by MITRE • 02/23/2025
A vulnerability classified as critical has been found in SourceCodester Best Employee Management System 1.0. This affects an unknown part of the file /_hr_soft/assets/uploadImage/Profile/ of the component Profile Picture Handler. The manipulation leads to unrestricted upload. It is possible to initiate the attack remotely.
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Analysis
by VulDB Data Team • 02/28/2025
This critical vulnerability in SourceCodester Best Employee Management System 1.0 represents a severe security flaw that allows unauthorized file uploads without proper validation mechanisms. The vulnerability specifically resides within the profile picture handler component located at the path /_hr_soft/assets/uploadImage/Profile/ which processes user-uploaded images. The unrestricted upload capability stems from insufficient input validation and lack of proper file type checking, enabling attackers to bypass security controls that should prevent execution of malicious files. This vulnerability is classified as a critical risk due to its potential for remote code execution and privilege escalation attacks.
The technical implementation of this flaw demonstrates a classic insecure file upload vulnerability where the application fails to properly validate file extensions, content types, or file signatures before processing uploads. Attackers can exploit this weakness by uploading malicious files with extensions that appear legitimate but contain malicious code. The vulnerability's remote exploitation capability means that threat actors do not require physical access to the system or local network privileges to initiate attacks. This aligns with CWE-434 which specifically addresses insecure file upload vulnerabilities where applications accept files from untrusted sources without proper validation. The attack surface is particularly concerning as profile picture handlers are frequently used by users and often lack the same security rigor as core application components.
The operational impact of this vulnerability extends beyond simple unauthorized file uploads and can lead to complete system compromise. Remote attackers can upload malicious scripts, web shells, or other payload files that persist on the server and can be executed by the web application. This creates a persistent backdoor that can be used for data exfiltration, privilege escalation, or as a staging point for further attacks within the network. The vulnerability can also enable attackers to bypass security controls that rely on image file validation, potentially allowing for privilege escalation attacks or lateral movement within the organization's infrastructure. According to ATT&CK framework, this vulnerability maps to T1190 (Exploit Public-Facing Application) and T1078 (Valid Accounts) as it provides a method for attackers to gain unauthorized access and maintain persistence.
Mitigation strategies for this vulnerability require immediate implementation of multiple security controls to address the root cause. Organizations should implement strict file type validation using allowlists rather than blocklists, enforce proper file extension checking, and validate file content using magic number verification. The system should also implement proper file naming conventions and store uploaded files in non-executable directories with appropriate access controls. Additionally, implementing Content Security Policy headers and using web application firewalls can provide additional layers of protection. Regular security assessments and input validation testing should be conducted to ensure that similar vulnerabilities are not present in other components of the application. The remediation process must include immediate patching of the affected system and implementation of comprehensive file upload security measures that align with industry best practices and security standards.