Description Preview
A vulnerability in the management REST API of Cisco Industrial Network Director (IND) allows authenticated remote attackers to cause 100% CPU utilization, resulting in a denial of service condition. The vulnerability stems from insufficient validation of requests sent to the REST API. Successful exploitation can cause a permanent DoS condition requiring manual intervention to recover the system.
Overview
This vulnerability (CVE-2020-3567) affects the Cisco Industrial Network Director, which is an industrial automation management solution. The issue exists in the management REST API component where input validation is insufficient. An authenticated attacker can send specially crafted requests to the REST API that will cause the CPU utilization to spike to 100%, effectively rendering the system unusable. This is classified as CWE-20 (Improper Input Validation). The DoS condition created by this vulnerability is particularly severe as it can be permanent and requires manual intervention to restore normal system operation.
Remediation
Organizations using Cisco Industrial Network Director should:
- Update to the latest software version as recommended in the Cisco Security Advisory.
- Implement network segmentation to limit access to the management interfaces.
- Ensure that only authorized personnel have authentication credentials for the IND system.
- Monitor CPU utilization for unusual spikes that might indicate exploitation attempts.
- Have recovery procedures in place in case the system becomes unresponsive.
- Follow Cisco's guidance for proper recovery steps if the system is affected.
References
- Cisco Security Advisory: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ind-dos-BwG634zn
- Title: Cisco Industrial Network Director Denial of Service Vulnerability
- Advisory ID: cisco-sa-ind-dos-BwG634zn
- Publication Date: October 7, 2020
- CWE-20: Improper Input Validation
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
