Description Preview
NetSetMan Pro versions before 5.0 contain a privilege escalation vulnerability that allows an unauthenticated attacker with physical access to a computer to execute arbitrary commands as SYSTEM. The vulnerability exists in the pre-logon profile switch button feature within the Windows logon screen, where an attacker can leverage the "save log to file" functionality to navigate to cmd.exe and gain administrative shell access.
Overview
This vulnerability (CVE-2021-34546) affects NetSetMan Pro versions prior to 5.0. NetSetMan is a network settings manager application for Windows systems. The issue stems from improper authentication controls (CWE-287) in the pre-logon profile switch feature. When this feature is enabled, it creates an attack vector where an unauthenticated user with physical access to the machine can exploit the "save log to file" functionality to navigate to cmd.exe and execute commands with SYSTEM privileges. This represents a critical security risk as it allows complete compromise of affected systems without requiring authentication credentials.
Remediation
To address this vulnerability, users should implement the following measures:
- Update NetSetMan Pro to version 5.0 or later, which contains fixes for this vulnerability
- If immediate updating is not possible, disable the pre-logon profile switch button within the Windows logon screen
- Restrict physical access to machines running vulnerable versions of NetSetMan Pro
- Consider implementing additional physical security controls for sensitive systems
- Monitor system logs for any suspicious activities that might indicate exploitation attempts
References
- Packet Storm Security - NetSetManPro 4.7.2 Privilege Escalation: http://packetstormsecurity.com/files/163097/NetSetManPro-4.7.2-Privilege-Escalation.html
- Full Disclosure Mailing List - secuvera-SA-2021-01: Privilege Escalation in NetSetMan Pro 4.7.2: http://seclists.org/fulldisclosure/2021/Jun/17
- NetSetMan Official Website: https://www.netsetman.com
- Secuvera Security Advisory: https://www.secuvera.de/advisories/secuvera-SA-2021-01.txt
- Secuvera Website: https://www.secuvera.de
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
