Description Preview
Overview
The vulnerability in ASUSTOR's EZ Sync service stems from improper input validation, allowing attackers to manipulate file paths and access directories outside of the intended scope. By exploiting this vulnerability, attackers can delete files that should be inaccessible, potentially leading to data loss, service disruption, or further system compromise. This is classified as a path traversal vulnerability (CWE-22), which occurs when software uses external input to construct a pathname that is intended to identify a file or directory located underneath a restricted directory, but does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location outside of the restricted directory.
Remediation
Users of affected ASUSTOR NAS devices should immediately update their firmware to the latest version that contains patches for this vulnerability. Specifically:
- For ADM 4.0.x users: Update to ADM 4.0.6.RGE3 or later
- For ADM 4.1.x users: Update to ADM 4.1.1 or later
- For ADM 4.2.x users: Update to ADM 4.2.2.RGE1 or later
Until updates can be applied, consider temporarily disabling the EZ Sync service if it's not critical for operations. Additionally, implement network segmentation to limit access to the NAS device from untrusted networks and regularly back up critical data to protect against potential data loss.
References
- ASUSTOR Security Advisory: https://www.asustor.com/security/security_advisory_detail?id=25
- Common Weakness Enumeration (CWE-22): https://cwe.mitre.org/data/definitions/22.html
- MITRE CVE Entry: CVE-2023-2909
Industry ExposureMost to leastThis section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.
- Accommodation & Food ServicesAccommodation & Food Services
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting
- Arts, Entertainment & RecreationArts, Entertainment & Recreation
- ConstructionConstruction
- Educational ServicesEducational Services
- Finance and InsuranceFinance and Insurance
- Health Care & Social AssistanceHealth Care & Social Assistance
- InformationInformation
- Management of Companies & EnterprisesManagement of Companies & Enterprises
- ManufacturingManufacturing
- MiningMining
- Other Services (except Public Administration)Other Services (except Public Administration)
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services
- Public AdministrationPublic Administration
- Real Estate Rental & LeasingReal Estate Rental & Leasing
- Retail TradeRetail Trade
- Transportation & WarehousingTransportation & Warehousing
- UtilitiesUtilities
- Wholesale TradeWholesale Trade
