CVE-2017-6359 in QTS
Summary
by MITRE
QNAP QTS before 4.2.4 Build 20170313 allows attackers to gain administrator privileges and execute arbitrary commands via unspecified vectors.
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Analysis
by VulDB Data Team • 07/07/2024
The vulnerability identified as CVE-2017-6359 affects QNAP QTS operating systems prior to version 4.2.4 build 20170313, representing a critical privilege escalation flaw that enables remote attackers to achieve administrative control over affected devices. This vulnerability exists within the QNAP QTS firmware ecosystem, which is widely deployed in network-attached storage solutions across enterprise and consumer environments, making it particularly concerning from a cybersecurity perspective. The unspecified vectors through which this privilege escalation occurs suggest a fundamental flaw in the authentication or authorization mechanisms that govern administrative access to the system.
The technical nature of this vulnerability stems from inadequate access control measures within the QNAP QTS framework, allowing unauthenticated or low-privilege users to manipulate system components and escalate their privileges to administrative levels. This flaw typically manifests through improper input validation or insufficient session management that permits attackers to bypass standard security controls. The vulnerability's classification aligns with CWE-284, which addresses improper access control issues, and represents a significant weakness in the principle of least privilege that should govern all system components. Attackers exploiting this vulnerability can execute arbitrary commands on the affected devices, potentially leading to complete system compromise and unauthorized data access.
The operational impact of CVE-2017-6359 extends far beyond simple privilege escalation, as it provides attackers with full administrative control over affected QNAP devices. This capability enables unauthorized users to modify system configurations, access sensitive data, install malicious software, and potentially use compromised devices as entry points for broader network infiltration. The vulnerability's presence in QTS versions prior to 4.2.4 build 20170313 indicates that it was likely present for an extended period, potentially allowing attackers to maintain persistent access to affected systems. Organizations utilizing QNAP devices for critical data storage and network services face significant risk of data breaches, service disruption, and potential compliance violations when these systems remain unpatched.
Security professionals should prioritize immediate remediation of systems affected by CVE-2017-6359, implementing the vendor-provided patches and firmware updates as soon as possible. The mitigation strategy should include comprehensive network monitoring to detect potential exploitation attempts and verification of system integrity through checksum validation of critical system components. Organizations should also implement network segmentation to limit potential lateral movement if systems remain unpatched temporarily. From an ATT&CK framework perspective, this vulnerability maps to privilege escalation techniques and command execution capabilities, potentially enabling attackers to progress through multiple phases of the attack lifecycle including initial access, persistence, and privilege escalation. Regular security assessments and vulnerability scanning should be conducted to identify similar unpatched systems within the organization's infrastructure, as QNAP devices are commonly deployed in environments where they serve as critical data repositories and network services platforms.