Nginx UI: Unauthenticated MCP Endpoint Allows Remote Nginx Takeover
97Vexday Risk Score
Corrige ahora. Ella explotación observada por VulnCheck y tiene exploit funcional público.
ssvc Actcvss 9.8epss 38%
de la publicación al arma18 días
Publicada en NVD30 mar
1ª PoC+18d
VulnCheck+14d
probabilidad de explotación
38%top 2% de las CVE
explotación observada
síVulnCheck
1 exploit(s) público(s)
Nginx UI is a web user interface for the Nginx web server. In versions 2.3.5 and prior, the nginx-ui MCP (Model Context Protocol) integration exposes two HTTP endpoints: /mcp and /mcp_message. While /mcp requires both IP whitelisting and authentication (AuthRequired() middleware), the /mcp_message endpoint only applies IP whitelisting - and the default IP whitelist is empty, which the middleware treats as "allow all". This means any network attacker can invoke all MCP tools without authentication, including restarting nginx, creating/modifying/deleting nginx configuration files, and triggering automatic config reloads - achieving complete nginx service takeover. At time of publication, there are no publicly available patches.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
0xJacky · nginx-uiPoCs públicas encontradas — 1
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