CVE-2023-44008 in mojoPortal
Summary
by MITRE • 10/25/2023
File Upload vulnerability in mojoPortal v.2.7.0.0 allows a remote attacker to execute arbitrary code via the File Manager function.
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Analysis
by VulDB Data Team • 10/25/2023
The vulnerability identified as CVE-2023-44008 represents a critical file upload flaw within the mojoPortal content management system version 2.7.0.0. This vulnerability resides within the File Manager function, which serves as a core component for managing media assets and documents within the platform. The flaw enables remote attackers to bypass intended security controls and upload malicious files to the server, potentially leading to complete system compromise. The vulnerability stems from insufficient input validation and sanitization mechanisms within the file upload handler, allowing attackers to manipulate the upload process and execute arbitrary code on the target system. This represents a significant security risk as it provides an attack vector that can be exploited from any location without requiring authentication or prior access to the system.
The technical implementation of this vulnerability can be categorized under CWE-434, which specifically addresses "Unrestricted Upload of File with Dangerous Type." The flaw occurs when the application fails to properly validate file extensions, MIME types, or file contents during the upload process. Attackers can exploit this by crafting malicious files with seemingly legitimate extensions that actually contain executable code or scripts. The File Manager function in mojoPortal likely accepts various file types without adequate filtering, permitting uploads of executable binaries, script files, or web shells that can be executed within the server environment. This vulnerability operates at the intersection of multiple attack vectors including web application exploitation, privilege escalation, and remote code execution, making it particularly dangerous in environments where the application runs with elevated privileges.
The operational impact of CVE-2023-44008 extends far beyond simple unauthorized file access, as successful exploitation can lead to complete system compromise and persistent access for attackers. Once an attacker uploads a malicious file, they can execute arbitrary code with the privileges of the web application, potentially allowing them to escalate privileges, access sensitive data, modify content, or establish backdoors for continued access. The vulnerability affects organizations using mojoPortal version 2.7.0.0, which could include websites, portals, and web applications that rely on this CMS for content management. The attack surface is particularly concerning given that the vulnerability can be exploited remotely without requiring any authentication, making it an attractive target for automated exploitation tools. Organizations may face data breaches, service disruption, and potential regulatory compliance violations if this vulnerability is exploited successfully.
Mitigation strategies for CVE-2023-44008 should focus on immediate patching and implementation of multiple defensive layers. The primary recommendation is to upgrade to a patched version of mojoPortal that addresses the file upload validation issues. Organizations should also implement strict file type validation, rejecting uploads of executable files or scripts regardless of extension. Additional defensive measures include restricting file upload permissions, implementing proper input sanitization, and deploying web application firewalls to monitor and block suspicious upload attempts. The vulnerability aligns with ATT&CK technique T1505.003 for "Web Shell" and T1059.001 for "Command and Scripting Interpreter," indicating that exploitation would likely involve establishing persistent access through web shells and executing commands through script interpreters. Security teams should also conduct thorough audits of uploaded files and monitor system logs for suspicious activity related to file uploads. Implementing principle of least privilege for web application accounts and regularly reviewing file permissions can further reduce the potential impact of successful exploitation attempts.