CVE-2017-12582 in TS212P
Summary
by MITRE
Unprivileged user can access all functions in the Surveillance Station component in QNAP TS212P devices with firmware 4.2.1 build 20160601. Unprivileged user cannot login at front end but with that unprivileged user SID, all function can access at Surveillance Station.
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Analysis
by VulDB Data Team • 11/08/2019
The vulnerability identified as CVE-2017-12582 represents a critical access control flaw within the Surveillance Station component of QNAP TS212P devices running firmware version 4.2.1 build 20160601. This issue stems from improper session management and authentication bypass mechanisms that allow unauthenticated users to gain full administrative privileges within the surveillance system. The vulnerability specifically affects the web-based management interface of the QNAP device, where the Surveillance Station module operates with insufficient authorization checks. The flaw enables attackers to exploit a session identifier (SID) obtained from an unprivileged user account to access all administrative functions and features of the surveillance system. This represents a fundamental breakdown in the principle of least privilege and demonstrates a severe weakness in the device's security architecture.
The technical implementation of this vulnerability involves the improper handling of session identifiers within the QNAP Surveillance Station component. When an unprivileged user accesses the system, the device generates a session identifier that should only grant limited access rights. However, the flawed implementation allows this session identifier to be used across different privilege levels, effectively bypassing the normal authentication and authorization processes. The vulnerability occurs at the application layer where session management logic fails to properly validate user privileges before granting access to administrative functions. This weakness aligns with CWE-285, which addresses improper authorization in software systems, and demonstrates how insufficient session validation can lead to privilege escalation. The attack vector is particularly concerning as it requires no direct authentication credentials beyond the initial unprivileged access, making it difficult to detect through conventional monitoring approaches.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass complete system compromise and potential data breaches. An attacker exploiting this vulnerability can access all surveillance functions including live video feeds, recorded footage, camera configuration settings, user management capabilities, and system administration tools. This comprehensive access enables malicious actors to monitor activities, modify system configurations, create or delete user accounts, and potentially exfiltrate sensitive video data. The vulnerability particularly affects organizations relying on QNAP devices for security monitoring, as it could allow unauthorized individuals to gain complete control over their surveillance infrastructure. The risk is amplified by the fact that the device typically operates in environments where security is paramount, making the compromise of such systems particularly damaging. This vulnerability directly maps to ATT&CK technique T1078.004, which covers legitimate credentials, and T1068, which addresses exploit for privilege escalation.
Mitigation strategies for CVE-2017-12582 should prioritize immediate firmware updates from QNAP to address the underlying session management flaw. Organizations must ensure that all affected QNAP TS212P devices are updated to the latest firmware version that includes proper authentication and session validation mechanisms. Network segmentation should be implemented to isolate surveillance systems from critical business networks, limiting the potential impact of exploitation. Access controls should be strengthened through the implementation of multi-factor authentication and regular privilege reviews. Security monitoring should include detection of unusual session activity patterns and unauthorized access attempts to surveillance functions. System administrators should conduct regular security assessments of networked storage devices and ensure that all security patches are applied promptly. The vulnerability highlights the importance of proper session management and authentication mechanisms in networked security appliances, emphasizing the need for comprehensive security testing throughout the software development lifecycle. Organizations should also consider implementing network-based intrusion detection systems to monitor for potential exploitation attempts targeting similar vulnerabilities in their surveillance infrastructure.