4

I have a Verizon FIOS router and when I install most applications that need a port forwarded, magically the entry is automatically set up in the router. I searched on google and found out this is because of something called uPnP.

What keeps rogue applications from automatically adding entries to the port forwarding list? I never even see a popup or dialog that asks for permission when it comes to these automatic entries.

migrated from serverfault.com Aug 5 '11 at 6:23

This question came from our site for system and network administrators.

7

Nothing prevents applications from adding entries. That's why it's highly recommended that you disable uPnP. Any port forwards you need can be easily set up manually.

4

Nothing. It is potentially a large security hole. However, because of the variety of routers and firewalls out there, most malware will just rely on a connection from the infected system to a controller.

  • 1
    Probably the biggest criticism of uPnP when it first came out. – surfasb Aug 5 '11 at 6:35

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