restify node-restify static.js serveStatic path traversal

A flaw has been found in restify node-restify up to 12.0.0. This affects the function serveStatic in the library /lib/plugins/static.js. This manipulation causes path traversal. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Restify is a framework for building REST APIs. Restify >=2.0.0 <=4.0.4 using URL encoded script tags in a non-existent URL, an attacker can get script to run in some browsers.