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VNC services detected on switch module on 891 router ?

Our cybersecurity team scans detected VNC service running on our 891 router. They are scanning the switch module, not the router interfaces (I locked those down). How is that possible ? Do I really have to apply ACL on the switch ports?

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balaji.bandi
Hall of Fame
Hall of Fame

what interface they are scanning outside or inside.

 

if you are not using VNC on your network, you can block port 5900 using ACL, and ask them to scan again to confirm.

 

BB

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