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XGS - V19.0.2 - WAN Side Telnet (23) Open!

Hi Guys, hi Sophos ....

Why is Telnet on Port 23 on WAN open?



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  • This tcpdump: Did you do it on port 23? 

    Try: tcpdump -ni any port 23 

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  • Yes.

    tcpdump -i Port2 port 23

    and this is from Log...

    Update:

    we are under heavy attacks.

    The DNAT Rule does not match. What Service is answering here?

  • So i tried this with a couple of Firewalls. None had Port23 open.

    Telnet was a old setting from V17.0 (if i remember correctly). 

    Please check the tcpdump of all ports to verify the appliance is actually answering. 

    Is this installation / backup old? 

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Reply
  • So i tried this with a couple of Firewalls. None had Port23 open.

    Telnet was a old setting from V17.0 (if i remember correctly). 

    Please check the tcpdump of all ports to verify the appliance is actually answering. 

    Is this installation / backup old? 

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