Description Preview
CVE-2020-17143 is an information disclosure vulnerability in Microsoft Exchange Server that could allow an authenticated attacker to access sensitive information. This vulnerability affects multiple versions of Microsoft Exchange Server and could potentially lead to unauthorized access to sensitive data if exploited successfully.
Overview
This vulnerability exists in Microsoft Exchange Server and could allow an authenticated user to access sensitive information they should not have permission to access. The vulnerability is classified as an information disclosure issue, which means it could potentially expose confidential data to unauthorized parties. The exact technical details of the vulnerability have not been fully disclosed by Microsoft, but it relates to how Exchange Server handles certain information, potentially allowing authenticated users to view data beyond their permission level. This vulnerability requires authentication, meaning an attacker would need valid credentials to exploit it.
Remediation
To address this vulnerability, organizations should:
- Apply the security update provided by Microsoft as soon as possible
- Install the latest cumulative updates for the affected Exchange Server versions
- Ensure that all Exchange servers are kept up to date with the latest security patches
- Monitor Exchange Server logs for any suspicious activity
- Consider implementing additional access controls and authentication mechanisms
- Follow Microsoft's security best practices for Exchange Server deployments
- Consider implementing network segmentation to limit potential exposure
References
- Microsoft Security Advisory: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17143
- Microsoft Security Update Guide: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17143
- Microsoft Exchange Team Blog: https://techcommunity.microsoft.com/t5/exchange-team-blog/exchange-server-security-updates/ba-p/2106708
- NIST National Vulnerability Database: https://nvd.nist.gov/vuln/detail/CVE-2020-17143
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.
- Health Care & Social AssistanceHealth Care & Social Assistance
- Finance and InsuranceFinance and Insurance
- ManufacturingManufacturing
- Educational ServicesEducational Services
- Management of Companies & EnterprisesManagement of Companies & Enterprises
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services
- Public AdministrationPublic Administration
- Transportation & WarehousingTransportation & Warehousing
- Accommodation & Food ServicesAccommodation & Food Services
- Arts, Entertainment & RecreationArts, Entertainment & Recreation
- Retail TradeRetail Trade
- UtilitiesUtilities
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting
- ConstructionConstruction
- InformationInformation
- MiningMining
- Other Services (except Public Administration)Other Services (except Public Administration)
- Real Estate Rental & LeasingReal Estate Rental & Leasing
- Wholesale TradeWholesale Trade
