CVE-2024-2849 in Simple File Manager
Summary
by MITRE • 03/23/2024
A vulnerability classified as critical was found in SourceCodester Simple File Manager 1.0. This vulnerability affects unknown code. The manipulation of the argument photo leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-257770 is the identifier assigned to this vulnerability.
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Analysis
by VulDB Data Team • 02/18/2025
The vulnerability identified as CVE-2024-2849 represents a critical security flaw in SourceCodester Simple File Manager version 1.0 that exposes the application to unauthorized file upload operations. This weakness resides in the application's handling of the photo parameter within its file management functionality, creating a pathway for attackers to bypass normal upload restrictions and execute malicious code within the target system. The vulnerability's classification as critical indicates the severe potential impact on system integrity and security posture, particularly given that the exploit has been publicly disclosed and is actively being used by threat actors.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization mechanisms within the photo argument processing code. When users submit files through the application's interface, the system fails to properly verify file types, content, or extensions before storing uploaded files. This allows attackers to upload malicious files such as php shell scripts, javascript payloads, or other executable code that can be executed within the web server context. The unrestricted upload capability directly maps to CWE-434, which describes the improper restriction of uploads to a restricted directory, and aligns with ATT&CK technique T1195.001 for uploading malicious files through web applications. The vulnerability's remote exploitability means attackers can leverage this weakness without requiring physical access to the system, making it particularly dangerous for publicly accessible web applications.
The operational impact of this vulnerability extends beyond simple unauthorized file uploads, creating potential pathways for complete system compromise and data exfiltration. Attackers can use the unrestricted upload capability to deploy web shells, reverse shells, or other malicious payloads that provide persistent access to the compromised system. The vulnerability enables attackers to execute arbitrary code with the privileges of the web server process, potentially leading to privilege escalation, lateral movement within network environments, and complete system takeover. Additionally, the presence of this vulnerability may allow attackers to establish backdoors, exfiltrate sensitive data, or use the compromised system as a pivot point for attacking other systems within the network infrastructure. Organizations running this version of Simple File Manager face significant risk of data breaches, service disruption, and regulatory compliance violations.
Mitigation strategies for CVE-2024-2849 should focus on immediate remediation through software updates and comprehensive security hardening measures. The primary recommendation involves upgrading to the latest version of SourceCodester Simple File Manager where the vulnerability has been patched and proper input validation has been implemented. Organizations should also implement strict file type validation, content verification, and secure file storage practices including the use of randomized file names, proper file extension checks, and storing uploaded files outside the web root directory. Network segmentation and web application firewalls should be deployed to monitor and restrict file upload operations. Additionally, implementing proper access controls, regular security assessments, and monitoring for suspicious file upload activities can help detect and prevent exploitation attempts. The vulnerability's public disclosure status necessitates immediate action to prevent unauthorized exploitation and maintain organizational security posture in accordance with industry best practices and compliance requirements.