CVE-2018-19955 in Photo Station
Summary
by MITRE
The cross-site scripting vulnerability has been reported to affect earlier versions of Photo Station. If exploited, the vulnerability could allow remote attackers to inject malicious code. This issue affects: QNAP Systems Inc. Photo Station versions prior to 5.7.11; versions prior to 6.0.10.
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Analysis
by VulDB Data Team • 12/01/2020
The cross-site scripting vulnerability identified as CVE-2018-19955 represents a critical security flaw in QNAP Systems Inc. Photo Station software that has significant implications for users of network-attached storage devices. This vulnerability exists within the web interface of the Photo Station application and affects versions prior to 5.7.11 and 6.0.10, creating a persistent risk for organizations relying on QNAP storage solutions. The flaw stems from inadequate input validation and output encoding mechanisms within the web application's codebase, allowing malicious actors to exploit the system through crafted user input that is not properly sanitized before being rendered to other users.
The technical exploitation of this vulnerability occurs through the injection of malicious scripts into web pages viewed by other users, enabling attackers to execute arbitrary code within the context of the victim's browser session. This type of vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws where input data is not properly validated or escaped before being included in web responses. The attack vector typically involves an attacker crafting specially formatted requests that include malicious script code within parameters or form fields that are then processed and displayed by the Photo Station interface without proper sanitization. This allows the malicious code to execute in the browser of any user who views the affected content, potentially leading to session hijacking, data theft, or further compromise of the affected system.
The operational impact of CVE-2018-19955 extends beyond simple script injection, as it provides attackers with a foothold for more sophisticated attacks within the network environment. When exploited, this vulnerability can enable attackers to access sensitive user data, manipulate photo albums, steal authentication tokens, or even escalate privileges within the storage system. The vulnerability affects not just individual users but entire organizations that rely on QNAP Photo Station for media management and sharing, potentially compromising thousands of user accounts and associated data. From an attacker perspective, this vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter, specifically web shell execution, and T1566 for credential access through social engineering or compromised web applications. Organizations using affected versions of Photo Station are particularly vulnerable because the attack can be executed remotely without requiring physical access to the storage device or prior authentication credentials.
The remediation strategy for this vulnerability requires immediate deployment of the patched versions 5.7.11 and 6.0.10 released by QNAP Systems Inc. These updates include proper input validation mechanisms and enhanced output encoding that prevent malicious scripts from being executed within the web interface. System administrators should conduct comprehensive vulnerability assessments to identify all instances of affected Photo Station versions across their network infrastructure and ensure proper patch management procedures are implemented. Additional mitigations include implementing web application firewalls, monitoring web traffic for suspicious script injection attempts, and conducting regular security audits of web applications within the storage environment. Organizations should also consider implementing network segmentation to limit access to Photo Station interfaces and establish robust monitoring procedures for detecting unauthorized access attempts. The vulnerability demonstrates the critical importance of keeping web applications updated and maintaining proper security hygiene in network-attached storage environments where sensitive data is stored and shared.