Description Preview
The CVE identifies a cross-site request forgery (CSRF) flaw in Auth0’s authentication service that exists when the Legacy Lock API flag is enabled. This vulnerability affects tenants that have the Legacy Lock API flag turned on and could allow an attacker to perform unwanted actions on behalf of an authenticated user. The issue is tied to the Legacy Lock API path and was disclosed in early 2018, with remediation dependent on disabling or updating away from the Legacy Lock API usage.
Overview
The vulnerability described in CVE-2018-6874 is a CSRF flaw in Auth0’s authentication service that occurs if the Legacy Lock API flag is enabled, affecting configurations that rely on that legacy API path up to the referenced build. The assessment notes no specific product version beyond the Legacy Lock API flag context, and the risk centers on the combination of the legacy API usage and CSRF exposure.
Remediation
- Immediately disable the Legacy Lock API flag in the Auth0 tenant settings, and migrate away from the Legacy Lock API to the current standard authentication APIs (e.g., modern Lock/Auth0.js or newer authentication flows).
- Update applications to no longer rely on the Legacy Lock API. Replace legacy Lock usage with supported libraries and authentication methods, then retest login and session handling.
- After disabling legacy functionality, review and test the login flow for CSRF resilience, ensuring same-site cookies and proper anti-CSRF protections where applicable in your own app.
- If you cannot disable the Legacy Lock API flag promptly, implement compensating controls in your application (e.g., robust CSRF tokens and strict referer checks) and plan a timely migration, while documenting the risk and mitigation status.
- Maintain and verify that all components are updated to supported versions and monitor for any further security advisories from Auth0.
References
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: Low
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services: Low
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting: Low
- Arts, Entertainment & RecreationArts, Entertainment & Recreation: Low
- ConstructionConstruction: Low
- Educational ServicesEducational Services: Low
- Finance and InsuranceFinance and Insurance: Low
- Health Care & Social AssistanceHealth Care & Social Assistance: Low
- InformationInformation: Low
- Management of Companies & EnterprisesManagement of Companies & Enterprises: Low
- ManufacturingManufacturing: Low
- MiningMining: Low
- Other Services (except Public Administration)Other Services (except Public Administration): Low
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services: Low
- Public AdministrationPublic Administration: Low
- Real Estate Rental & LeasingReal Estate Rental & Leasing: Low
- Retail TradeRetail Trade: Low
- Transportation & WarehousingTransportation & Warehousing: Low
- UtilitiesUtilities: Low
- Wholesale TradeWholesale Trade: Low
