wu-ftpd data channel opening errors
Hi guys! I have problem with wu-ftpd ftp server and I'll try to briefly explain what this is all about. I compiled the most recent version (2.6.2 I believe) and when user logs on from network ftpd replies with> ftp> ls 500 Illegal PORT Command 425 Can't build data connection: Address family not supported by protocol. ftp> and logs> Feb 20 14:31:03 frut ftpd[11467]: refused PORT 10.1.21.2,2381 from localhost [0. 0.0.0] Any additional 'lsing' gives> ftp> ls 425 Can't build data connection: Address family not supported by protocol. ftp> with nothing logged. When user logs on from the server where ftpd runs after issuing ls server responds with> ftp> ls 500 'EPSV': command not understood. 227 Entering Passive Mode (0,0,0,0,93,161) 425 Possible PASV port theft, cannot open data connection. ftp> and logs> Feb 20 14:34:14 frut ftpd[11475]: nova of localhost [0.0.0.0]: data connect from 127.0.0.1 for /bin/ls Any additional lsing gives> ftp> ls 227 Entering Passive Mode (0,0,0,0,241,19) 425 Possible PASV port theft, cannot open data connection. ftp> and logs> Feb 20 14:35:17 frut ftpd[11486]: nova of localhost [0.0.0.0]: data connect from 127.0.0.1 for /bin/ls I have been reading about problems with wu-ftpd and there are lots of them, aren't they? I apologize for possible miss-posting but this smells like wu-ftpd security issues. Any ideas? Regards, Pope
Hi guys!
I have problem with wu-ftpd ftp server and I'll try to briefly explain what this is all about. I compiled the most recent version (2.6.2 I believe) and when user logs on from network ftpd replies with>
ftp> ls 500 Illegal PORT Command 425 Can't build data connection: Address family not supported by protocol. ftp>
and logs>
Feb 20 14:31:03 frut ftpd[11467]: refused PORT 10.1.21.2,2381 from localhost [0.0.0.0]
Since localhost is 127.0.0.1, it may be your start point to determine, why the daemon gives a log on 0.0.0.0 Furthermore, e.g. if you ran harden_suse, you have to enabled services in /etc/hosts.[allow|deny]. Yours Michael
Hi guys!
I have problem with wu-ftpd ftp server and I'll try to briefly explain what this is all about. I compiled the most recent version (2.6.2 I believe) and when user logs on from network ftpd replies with>
ftp> ls 500 Illegal PORT Command 425 Can't build data connection: Address family not supported by protocol. ftp>
And another idea, since you can login, it maybe that same filter blocks the ports needed for active ftp, so try to type "passive" post login an check if it works. Michael Appeldorn
participants (2)
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Michael Appeldorn
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Sasa Popravak