[Driftstörning] Emergency block of 1900/udp & 1900/tcp [ChalmersIRT #67699]

[Gunnar Lindberg]

Due to reported vulnerabilities in the UPnP service we have decided
to block incomming Internet traffic to ports 1900/udp & 1900/tcp.

Expected impact of these blocks: Low

Vulnerability report:
>Risk           : high
>Damage         : medium
>                   Code injection
>                   Denial of service
>                   Remote code execution

	Gunnar Lindberg, IRT & CDG

PS
    UPnP == Universal Plug and Play

    https://community.rapid7.com/community/infosec/blog/2013/01/29/security-flaws-in-universal-plug-and-play-unplug-dont-play

    https://isc.sans.edu/diary/Exposed+UPNP+Devices/15040

    https://community.rapid7.com/servlet/JiveServlet/download/2150-1-16596/SecurityFlawsUPnP.pdf
								    DS