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CVE-2021-29441

Authentication bypass PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
alibaba / nacosaffected < 1.4.1

CWE

CWE-290

References

ADP enrichment

CVE

No English description supplied.