CVE-2024-27776 in DeviceHub
Summary
by MITRE • 06/02/2024
MileSight DeviceHub -
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') may allow Unauthenticated RCE
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Analysis
by VulDB Data Team • 06/03/2024
The CVE-2024-27776 vulnerability affects MileSight DeviceHub systems and represents a critical path traversal flaw classified under CWE-22 that can lead to unauthenticated remote code execution. This vulnerability exists within the device management interface where improper input validation allows attackers to manipulate file paths and gain access to restricted directories. The flaw specifically manifests in how the system handles pathname inputs during file operations, enabling malicious actors to traverse directory structures beyond intended boundaries.
The technical implementation of this vulnerability stems from inadequate sanitization of user-supplied pathname data within the DeviceHub's web interface. When legitimate users or attackers submit file path parameters, the system fails to properly validate or restrict these inputs against directory traversal sequences such as ../ or ..\ that would normally be blocked by proper access controls. This weakness allows an unauthenticated attacker to craft malicious requests that can access system files, configuration data, and potentially execute arbitrary code on the affected device. The vulnerability impacts the core file handling mechanisms that govern how the DeviceHub manages device connections, configuration files, and system resources.
Operationally, this vulnerability presents a severe threat to industrial IoT deployments that rely on MileSight DeviceHub for device management and monitoring. Attackers can exploit this flaw to gain unauthorized access to sensitive operational data, potentially compromising entire industrial control networks. The unauthenticated nature of the exploit means that no prior credentials are required to initiate the attack, making it particularly dangerous for environments where physical security is limited or where devices are exposed to external networks. The remote code execution capability allows threat actors to install backdoors, modify device configurations, or disrupt critical operations within the managed network infrastructure.
Security mitigations for CVE-2024-27776 should prioritize immediate patching of affected DeviceHub systems through vendor-provided updates that implement proper input validation and path sanitization. Network segmentation and firewall rules should be implemented to restrict access to DeviceHub interfaces from untrusted networks, while monitoring systems should be deployed to detect anomalous file access patterns that might indicate exploitation attempts. The implementation of principle of least privilege access controls and regular security audits of device configurations can help reduce the attack surface. Organizations should also consider implementing intrusion detection systems specifically configured to identify path traversal attack patterns and maintain comprehensive incident response procedures for potential exploitation of this vulnerability. This flaw aligns with ATT&CK technique T1059.007 for remote code execution and T1566 for initial access through web applications, making it a significant concern for industrial control system security.