CVE-2020-28574 in Worry-Free Business Security
Summary
by MITRE • 11/19/2020
A unauthenticated path traversal arbitrary remote file deletion vulnerability in Trend Micro Worry-Free Business Security 10 SP1 could allow an unauthenticated attacker to exploit the vulnerability and modify or delete arbitrary files on the product's management console.
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Analysis
by VulDB Data Team • 12/08/2020
The vulnerability identified as CVE-2020-28574 represents a critical security flaw in Trend Micro Worry-Free Business Security version 10 Service Pack 1, specifically affecting the management console component. This issue stems from inadequate input validation mechanisms within the application's file handling processes, creating an exploitable condition that permits unauthorized remote access to system resources. The vulnerability manifests as a path traversal flaw that allows attackers to manipulate file system paths through crafted requests, bypassing normal access controls and authentication requirements.
The technical implementation of this vulnerability resides in the management console's insufficient sanitization of user-supplied input parameters that are used to construct file paths for operations. When the application processes file deletion requests, it fails to properly validate or sanitize the input data, enabling attackers to inject malicious path sequences such as ../ or ..\ that traverse the directory structure beyond intended boundaries. This weakness directly maps to CWE-22, which categorizes path traversal vulnerabilities as a fundamental flaw in input validation and access control mechanisms. The flaw operates at the application layer, specifically targeting the file system operations within the Trend Micro security product's management interface, making it particularly dangerous as it allows for arbitrary file manipulation without requiring legitimate credentials.
The operational impact of this vulnerability extends beyond simple file deletion capabilities, as it provides attackers with the means to compromise the entire management console environment. An unauthenticated attacker can leverage this vulnerability to delete critical system files, modify configuration settings, or potentially gain deeper access to underlying system resources. The implications are severe for enterprise environments that rely on Trend Micro Worry-Free Business Security, as compromise of the management console could lead to complete system takeover, data loss, and disruption of security operations. This vulnerability essentially allows attackers to execute arbitrary file deletion operations on the target system, potentially destroying critical security infrastructure components.
Security professionals should consider this vulnerability in the context of the MITRE ATT&CK framework, particularly under the T1059.007 technique for command and control communications, and T1486 for data destruction. The vulnerability enables attackers to perform destructive operations without detection, as the lack of authentication requirements means that such activities would not trigger typical intrusion detection systems. Organizations should implement immediate mitigations including network segmentation to isolate the management console from untrusted networks, deployment of web application firewalls to filter malicious requests, and application-level input validation controls. Additionally, patch management procedures should be prioritized to ensure timely deployment of vendor-provided security updates, as Trend Micro has released fixes for this specific vulnerability. The remediation strategy should also include comprehensive monitoring of file system operations and access logs to detect potential exploitation attempts and establish baseline behaviors for system integrity verification.