Description Preview
A vulnerability in Ozeki NG SMS Gateway through version 4.17.6 allows attackers to delete arbitrary files on the system through the outbox functionality of the TXT File module. Since the application typically runs with SYSTEM privileges, an attacker can delete most files on the system, with the exception of files that are currently in use or have special security attributes.
Overview
CVE-2020-14031 affects Ozeki NG SMS Gateway through version 4.17.6. The vulnerability exists in the TXT File module's outbox functionality, which can be exploited to delete arbitrary files in a folder on the affected system. The application typically runs with NT AUTHORITY\SYSTEM privileges, giving it extensive access to system files. This means an attacker exploiting this vulnerability could delete critical system files, potentially causing system instability or denial of service. The only files that would be protected from deletion are those currently being executed by the system or files with special security attributes, such as those used by Windows Defender.
Remediation
To mitigate this vulnerability, system administrators should:
- Update Ozeki NG SMS Gateway to the latest version that contains the security fix
- Implement the principle of least privilege by running the application with minimal necessary permissions rather than SYSTEM privileges
- Restrict access to the TXT File module's functionality to only trusted administrators
- Monitor file system activities for unexpected deletion operations
- Implement regular backups of critical system files to enable recovery in case of exploitation
- Consider implementing additional access controls to protect sensitive directories
References
- Vendor Advisory: http://www.ozeki.hu/index.php?owpn=231
- Exploit Details and Technical Analysis: https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-14031-Arbitary%20File%20Delete-Ozeki%20SMS%20Gateway
- MITRE CVE Entry: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14031
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.
This 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.
- ManufacturingManufacturing
- 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
- 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
