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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actionparsnip (andrew-woodhead666) said :

I suggest you report a vulnerability bug.

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