CVE-2019-7194 in QTS
Summary
by MITRE
This external control of file name or path vulnerability allows remote attackers to access or modify system files. To fix the vulnerability, QNAP recommend updating Photo Station to their latest versions.
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Analysis
by VulDB Data Team • 02/06/2025
The vulnerability identified as CVE-2019-7194 represents a critical external control of file name or path issue that affects QNAP Photo Station applications. This weakness falls under the broader category of path traversal attacks and specifically aligns with CWE-22 which defines improper limitation of a pathname to a restricted directory. The vulnerability stems from insufficient input validation within the Photo Station component where user-supplied data can influence file system operations without proper sanitization or authorization checks. Attackers can exploit this flaw by manipulating file path parameters to access unauthorized system resources or execute malicious operations on the underlying file system.
The technical implementation of this vulnerability allows remote attackers to manipulate file path parameters through crafted requests that bypass normal access controls. When Photo Station processes user input containing file path information, it fails to properly validate or sanitize the input before using it in file system operations. This creates an opportunity for attackers to traverse directory structures and access files outside the intended scope of the application. The vulnerability specifically affects the Photo Station module which handles file operations for photo management and storage, making it a prime target for attackers seeking unauthorized access to sensitive data or system resources.
The operational impact of CVE-2019-7194 extends beyond simple unauthorized file access to potentially enable more severe attacks including data exfiltration, system compromise, and persistent access to networked storage systems. Organizations utilizing QNAP devices with vulnerable Photo Station versions face significant risk as attackers can exploit this vulnerability to gain access to personal photos, system configuration files, and potentially other sensitive data stored on the network-attached storage devices. The remote nature of this vulnerability means that attackers do not require physical access to the device or local network presence to exploit the flaw, making it particularly dangerous in enterprise environments where such devices may be exposed to external networks. This vulnerability directly maps to attack techniques described in the MITRE ATT&CK framework under T1074 for data staging and T1566 for credential harvesting through file system access.
The recommended mitigation for CVE-2019-7194 involves immediate updating of Photo Station to the latest versions released by QNAP, which contain proper input validation and sanitization mechanisms. Organizations should also implement network segmentation to limit access to QNAP devices and consider disabling unnecessary services or features that may expose vulnerable components. Additional protective measures include monitoring network traffic for suspicious file path manipulation attempts and implementing proper access controls through firewall rules that restrict external access to storage services. The vulnerability demonstrates the importance of proper input validation in web applications and highlights the need for comprehensive security testing of file system operations in networked storage solutions. Security teams should prioritize patch management for QNAP devices and consider implementing automated vulnerability scanning to identify other potentially vulnerable components within their network infrastructure.