AirPort Extreme FTP port is open when doing Remote Port Scan
I have a question regarding the AirPort Extreme Base stations running firmware 7.7.3. Currently the AirPort is not port-mapping any services, however when I do a remote port scan of that particular AirPort I have noticed some TCP ports are open from the outside, such as FTP port 21, RTSP port 554 and ARCP port 7070. Why is that? I thought the AEBS blocks these services by default, unless otherwise configured to be open. Is this a vulnerability with the firmware?
TCP and UDP ports used by Apple software products - Apple Support
Your 554 and 7070 may be open due to links to itunes store. It is not a big vulnerability since it is for streaming.
Port 21 is more a concern.. It is used internally by the AE apparently.. but I really do not know why. FTP as a protocol is not offered to the outside world. so you cannot connect to it and get info for files.. even if you have a hard disk plugged in. Why it should be open to the outside world I am not sure.
Do you have BTMM turned on? It may be involved with remote services.
If you are concerned it is not hard to fix.. port map those ports to a non-existent client in the network.. however your itunes store connection might stop working as well as some other things... that need those ports open.. There is also a good chance you cannot map them when they are used.. so do a factory reset and before you setup other applications or BTMM do the port map and see what happens.
You can also post the details to apple directly but I honestly doubt you are facing any big issues here.
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Thanks!Kelly Crossley wrote:
... Is it common for AE port issues to be intermitent?
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Hey ya'll,
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I have tried to track the problems for a while.
FTP issues.
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https://discussions.apple.com/message/22948061#22948061
https://discussions.apple.com/message/22927625#22927625
The last post in this thread by.. SBeattie2
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https://discussions.apple.com/message/22872985#22872985 -
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