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.

CWE: CWE-290

CVSS 2: HIGH – 7.5 (Version: 2.0)
CVSS 3: CRITICAL – 9.8 (Version: 3.1)


NVD – CVE-2021-29441
CVE – CVE-2021-29441

Link (max. 20) Quelle Tags MISC Exploit Third Party Advisory CONFIRM Exploit Third Party Advisory MISC Patch Third Party Advisory

Quelle: NVD – CVE-2021-29441
Datum Veröffentlichung: 2021-04-27T21:15Z, Datum letzte Änderung: 2021-05-07T23:09Z