FTP server uses predictable port numbers for PASV connections
Asked by
Douglas Otto
Our Rapid 7 scanner has detected a vulnerability on a newly installed Ubuntu v11.10 server running vsFTPd 2.3.2.
It says "FTP server used ports 51156, 51157, 51158, 51159, 51160, which is a predictable sequence."
Does anyone know about this vulnerability and how to fix it?
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