Description Preview
CVE-2023-28241 is a vulnerability in the Windows Secure Socket Tunneling Protocol (SSTP) that could allow an attacker to perform a denial of service attack. This vulnerability affects Windows systems that have the SSTP service enabled, potentially allowing attackers to disrupt the availability of the affected system.
Overview
The Windows Secure Socket Tunneling Protocol (SSTP) is a VPN tunneling protocol that allows secure point-to-point connections over the internet. This vulnerability could enable an attacker to cause a denial of service condition by sending specially crafted packets to an SSTP-enabled system. When successfully exploited, this vulnerability could cause the SSTP service to become unresponsive or crash, potentially disrupting VPN connectivity for users. The vulnerability does not appear to allow for code execution or privilege escalation, but primarily impacts system availability.
Remediation
To address this vulnerability, administrators should:
- Apply the security updates provided by Microsoft through Windows Update or the Microsoft Update Catalog.
- Ensure that automatic updates are enabled for timely application of security patches.
- Consider implementing network-level protections to filter potentially malicious traffic directed at SSTP services.
- If SSTP is not required in your environment, consider disabling the service until patches can be applied.
- Monitor SSTP services for signs of attacks or unusual behavior.
References
- Microsoft Security Response Center (MSRC) Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28241
- Microsoft Security Updates: https://msrc.microsoft.com/update-guide
- Microsoft documentation on SSTP: https://learn.microsoft.com/en-us/windows-server/remote/remote-access/vpn/vpn-reconnect
- NIST National Vulnerability Database: https://nvd.nist.gov/vuln/detail/CVE-2023-28241
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
- Health Care & Social AssistanceHealth Care & Social Assistance
- Public AdministrationPublic Administration
- Educational ServicesEducational Services
- Finance and InsuranceFinance and Insurance
- Transportation & WarehousingTransportation & Warehousing
- Retail TradeRetail Trade
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services
- InformationInformation
- UtilitiesUtilities
- Other Services (except Public Administration)Other Services (except Public Administration)
- Arts, Entertainment & RecreationArts, Entertainment & Recreation
- Management of Companies & EnterprisesManagement of Companies & Enterprises
- Accommodation & Food ServicesAccommodation & Food Services
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting
- ConstructionConstruction
- Real Estate Rental & LeasingReal Estate Rental & Leasing
- MiningMining
- Wholesale TradeWholesale Trade
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services
