Nacos prior to 1.4.1 Authentication Bypass CVE-2021-29441 Scanner

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Nacos prior to 1.4.1 Authentication Bypass CVE-2021-29441 Scanner Detail

Nacos prior to 1.4.1 allows authentication bypass vulnerability.

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server.

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