Advisories for Maven/Com.alibaba.nacos/Nacos-Api package

An Access Control vulnerability exists in Nacos 2.0.3 in the access prompt page; enter username and password, click on login to capture packets and then change the returned package, which lets a malicious user login.

A Cross Site Scripting (XSS) vulnerability exists in Nacos 2.0.3 in auth/users via the (1) pageSize and (2) pageNo parameters.

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos, the ConfigOpsController lets the user perform management operations like querying the database or even wiping it out. While the /data/remove endpoint is properly protected with the @Secured annotation, the /derby endpoint is not protected and can be openly accessed by unauthenticated users. These endpoints are only valid when using embedded storage (derby DB) so …

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos, when configured to use authentication -Dnacos.core.auth.enabled=true it 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 …

Nacos suffers from a flaw where users can access service details when unauthenticated. An environment can be set up locally to get the service details interface. Then other Nacos service names can be accessed through the service list interface. Service details can then be accessed when not logged in.