### 简要描述：
### 详细说明：
金蝶OA系统在web.xml中配置了一个servlet Connector，是基于旧版本的fckeditor，存在任意文件上传漏洞，配置如下：
[<img src="https://images.seebug.org/upload/201507/271528549207f4369339710dc3e86cffcd5b8319.png" alt="1.png" width="600" onerror="javascript:errimg(this);">](https://images.seebug.org/upload/201507/271528549207f4369339710dc3e86cffcd5b8319.png)
com.fredck.FCKeditor.connector.ConnectorServlet.class反编译出主要代码如下：
```
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
……
String commandStr = request.getParameter("Command");
String typeStr = request.getParameter("Type");
String currentFolderStr = request.getParameter("CurrentFolder");
String currentPath = baseDir + typeStr + currentFolderStr;
String currentDirPath = getServletContext().getRealPath(currentPath);
……
if (!commandStr.equals("FileUpload")) {
retVal = "203";
} else {
DiskFileUpload upload = new DiskFileUpload();
try {
List items = upload.parseRequest(request);
Map fields = new HashMap();
Iterator iter = items.iterator();
while (iter.hasNext()) {
FileItem item = (FileItem)iter.next();
if (item.isFormField())
fields.put(item.getFieldName(), item.getString());
else
fields.put(item.getFieldName(), item);
}
FileItem uplFile = (FileItem)fields.get("NewFile");
String fileNameLong = uplFile.getName();
fileNameLong = fileNameLong.replace('\\', '/');
String[] pathParts = fileNameLong.split("/");
String fileName = pathParts[(pathParts.length - 1)];
String nameWithoutExt = getNameWithoutExtension(fileName);
String ext = getExtension(fileName);
File pathToSave = new File(currentDirPath, fileName);
int counter = 1;
while (pathToSave.exists()) {
newName = nameWithoutExt + "(" + counter + ")" + "." + ext;
retVal = "201";
pathToSave = new File(currentDirPath, newName);
counter++;
}
uplFile.write(pathToSave);
} catch (Exception ex) {
retVal = "203";
}
}
……
}
private static String getNameWithoutExtension(String fileName)
{
return fileName.substring(0, fileName.lastIndexOf("."));
}
private String getExtension(String fileName)
{
return fileName.substring(fileName.lastIndexOf(".") + 1);
}
```
当Command参数为FileUpload时进行上传，最终服务器上生成的pathToSave文件名，由上传文件路径获得:
```
c:\a\b.jsp => b.jsp
```
可以看到整个过程是没有过滤后缀的。
直接本地构造一个上传页面即可上传：
[<img src="https://images.seebug.org/upload/201507/28132432de2ecf42ac909906c6b96a790e400b8c.png" alt="2.png" width="600" onerror="javascript:errimg(this);">](https://images.seebug.org/upload/201507/28132432de2ecf42ac909906c6b96a790e400b8c.png)
得到webshell如下：
http://202.104.120.18:7890/oa/uploadfiles/File/testabc.jsp
金蝶官方协同办公系统测试地址：
```
http://kdhr.kingdee.com/oa/login/k3oa.do
http://202.104.120.18:7890/oa/
```
搜索引擎中记录的，有些已经被getshell了：
```
http://www.baidu.com/s?wd=inurl%3A%2Foa%2Fthemes%20inurl%3Ajsp&pn=0&oq=inurl%3A%2Foa%2Fthemes%20inurl%3Ajsp&tn=baiduhome_pg&ie=utf-8&rsv_idx=2&rsv_pq=fb5f291b0000049f&rsv_t=82d1fPuT2XOZBoyz9U23%2FZ%2Ft1VKbzrvhMO%2F2TBLPypK2rkEqqA7Xt0LZtkQw42tT1RMn
```
### 漏洞证明：
同上
京公网安备 11010502034610号
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