CVE-2019-7195 Scanner

QNAP Photo Station is a versatile application that is commonly found on QNAP NAS devices, used for managing photos and videos in personal and professional environments. It offers users the ability to upload, organize, and share multimedia files across different devices. By allowing access to these files via web interfaces and mobile applications, it provides convenience and ease of access for home users, as well as small and medium businesses. Employees and family members can collaborate through shared albums, making it a preferred choice for photo storage and management. Moreover, its integration with various QNAP NAS services makes it a valuable component in the broader QNAP ecosystem. Photo Station aims to deliver a seamless experience, combining both aesthetic and functional requirements for its users.

The Path Traversal vulnerability identified in QNAP Photo Station allows attackers to manipulate file paths to access restricted directories and files on the device. This type of vulnerability arises when user inputs are insufficiently sanitized, enabling attackers to traverse the directory system unexpectedly. Such vulnerabilities are critical as they may reveal sensitive files that are critical to system operations. External attackers can harness this weakness to gain unauthorized access, bypassing standard security measures. The ability to manipulate file paths dynamically can lead to significant data breaches if exploited. Understanding and mitigating this vulnerability is crucial in ensuring the security of multimedia files and the integrity of the storage devices.

QNAP Photo Station's Path Traversal vulnerability can be exploited by manipulating certain parameters, such as the 'filename' used in HTTP requests, to escalate access to secured system files. In particular, POST and GET requests directed to certain endpoints can be exploited by appending crafted directory traversal strings, allowing an external attacker to access system files like '/etc/passwd'. When the request is processed, malicious actors can execute commands to list contents of directories they would usually have no permissions to access. Ensuring dynamic characters like '../' do not resolve to parent directories is crucial in preventing this issue. This technical detail represents a serious flaw if left unaddressed, heavily compromising system security.

If exploited, the Path Traversal vulnerability within QNAP Photo Station can lead to significant security breaches. Attackers may gain unauthorized access to sensitive files, potentially allowing them to extract critical data like user credentials or system configurations. Such unauthorized access could result in full system compromise, where an attacker could further plant malware or disrupt service operations. The unauthorized exposure of personal and organizational data can lead to privacy invasions, legal penalties, and reputational damage. Preventing exploitation is vital to maintaining the confidentiality, integrity, and availability of sensitive information managed by QNAP Photo Station.

REFERENCES

• https://cycrafttechnology.medium.com/qnap-pre-auth-root-rce-affecting-312k-devices-on-the-internet-fc8af285622e
• https://packetstorm.news/files/id/157857
• https://github.com/cycraft-corp/cve-2019-7192-check
• https://github.com/qazbnm456/awesome-cve-poc
• https://github.com/th3gundy/CVE-2019-7192_QNAP_Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-7195