CVE-2023-51925 in YonBIP
Summary
by MITRE • 01/20/2024
An arbitrary file upload vulnerability in the nccloud.web.arcp.taskmonitor.action.ArcpUploadAction.doAction() method of YonBIP v3_23.05 allows attackers to execute arbitrary code via uploading a crafted file.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 02/15/2024
The vulnerability identified as CVE-2023-51925 represents a critical arbitrary file upload flaw within the YonBIP v3_23.05 platform, specifically within the nccloud.web.arcp.taskmonitor.action.ArcpUploadAction.doAction() method. This vulnerability stems from inadequate input validation and sanitization mechanisms that fail to properly restrict file types and content during the upload process. The affected component is part of the task monitoring functionality, which is commonly used for managing and tracking business processes within the enterprise resource planning system.
The technical exploitation of this vulnerability occurs when an attacker uploads a malicious file through the vulnerable upload endpoint without proper authorization. The system lacks sufficient validation to determine whether the uploaded file is safe, allowing attackers to bypass security controls and upload executable files such as jsp, php, or other script-based formats that can be executed within the web server context. This flaw aligns with CWE-434 which specifically addresses insecure file upload vulnerabilities where applications accept files from untrusted sources without proper validation. The vulnerability essentially creates a backdoor within the application's file handling mechanism, enabling remote code execution capabilities.
From an operational impact perspective, this vulnerability presents a severe threat to organizations using YonBIP v3_23.05 as it allows attackers to gain unauthorized access to the underlying system. Once successfully exploited, attackers can execute arbitrary code with the privileges of the web application, potentially leading to complete system compromise, data exfiltration, and persistence within the network. The vulnerability can be exploited by unauthenticated users, making it particularly dangerous as it does not require valid credentials to initiate the attack. This aligns with ATT&CK technique T1190 which describes the use of malicious file uploads to establish initial access and maintain persistence within target environments.
Organizations should immediately implement multiple layers of mitigation strategies to address this vulnerability. The primary recommendation involves implementing strict file type validation and content checking mechanisms that reject suspicious file extensions and executable content. Access controls should be strengthened to ensure that only authorized personnel can access upload functionality, and the principle of least privilege should be enforced throughout the system. Network segmentation and monitoring should be enhanced to detect and prevent unauthorized file upload activities. Additionally, regular security assessments and penetration testing should be conducted to identify similar vulnerabilities within the application stack. The remediation process should include immediate patching of the affected YonBIP version, proper input validation implementation, and comprehensive security hardening of the web application server configuration.