Description Preview
A vulnerability has been identified in the BIOS tamper detection mechanism of several Lenovo ThinkPad models. The mechanism fails to trigger when tampering occurs, potentially allowing unauthorized physical access to the system without detection. This affects ThinkPad T495s, X395, T495, A485, A285, A475, and A275 models.
Overview
The BIOS tamper detection mechanism in affected Lenovo ThinkPad models does not properly trigger when tampering occurs. This vulnerability (CVE-2020-8334) is classified as CWE-754, which relates to improper handling of exceptional conditions. When the BIOS tamper detection fails to activate, an attacker with physical access to the device could potentially modify hardware or firmware components without the system detecting or alerting to the unauthorized access. This undermines a critical security feature designed to protect against physical tampering of the system.
Remediation
Users of affected Lenovo ThinkPad models should:
- Update the BIOS firmware to the latest version as provided by Lenovo
- Visit the Lenovo Product Security Advisory page (LEN-30042) for model-specific update instructions
- Enable any additional physical security measures available for the device
- Consider implementing additional monitoring solutions to detect unauthorized physical access
- Follow best practices for physical security of devices, especially in shared or public environments
References
- Lenovo Product Security Advisory: https://support.lenovo.com/us/en/product_security/LEN-30042
- CWE-754: Improper Check for Unusual or Exceptional Conditions: https://cwe.mitre.org/data/definitions/754.html
- MITRE CVE Entry: CVE-2020-8334
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.
- 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
- ManufacturingManufacturing
- 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
