CVE-2024-12700 in AggreGate Network Manager
Summary
by MITRE • 12/20/2024
There is an unrestricted file upload vulnerability where it is possible for an authenticated user (low privileged) to upload an jsp shell and execute code with the privileges of user running the web server.
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Analysis
by VulDB Data Team • 12/20/2024
This vulnerability represents a critical unrestricted file upload flaw that allows low-privileged authenticated users to bypass security controls and upload malicious jsp shell files to the target system. The vulnerability exists within the application's file upload functionality where proper validation and sanitization mechanisms are absent or insufficient. When an authenticated user uploads a jsp file, the system fails to perform adequate checks on file type, content, or extension, enabling the execution of arbitrary code with the privileges of the web server process. This presents a severe escalation of privileges scenario where attackers can leverage the compromised web application to gain system-level access.
The technical implementation of this vulnerability stems from inadequate input validation and improper file handling within the web application's upload mechanism. The system likely accepts file uploads without verifying the actual file content against expected types, instead relying solely on file extension checks that can be easily bypassed. This flaw aligns with CWE-434 which specifically addresses unrestricted file upload vulnerabilities where applications accept files without proper validation. The vulnerability creates a direct pathway for remote code execution as the uploaded jsp shell can be executed by the web server, potentially allowing attackers to establish persistent access, escalate privileges, and move laterally within the network infrastructure.
The operational impact of this vulnerability extends far beyond simple code execution, as it provides attackers with the ability to manipulate the web server environment with elevated privileges. The attacker can execute arbitrary commands on the server, potentially leading to data exfiltration, system compromise, or further network infiltration. This vulnerability is particularly dangerous because it requires minimal privileges to exploit, making it accessible to users with low-level access who would normally not have significant system control. The implications include potential data breaches, service disruption, and complete system compromise, as the web server process typically runs with elevated permissions that can be leveraged for further attacks.
Mitigation strategies should focus on implementing comprehensive file upload validation controls, including strict content type checking, file extension filtering, and mandatory file content verification. The system should employ multiple validation layers such as server-side file type detection, size limits, and filename sanitization to prevent malicious uploads. Security controls should align with defense-in-depth principles and incorporate proper access controls to ensure only authorized users can upload files. Organizations should also implement web application firewalls, regular security scanning, and proper logging mechanisms to detect and prevent exploitation attempts. Additionally, following secure coding practices and implementing proper input validation as outlined in the OWASP Top Ten and MITRE ATT&CK framework can significantly reduce the risk of such vulnerabilities being exploited in production environments.