North American Network Operators Group
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Re: Firewall stateful handling of ICMP packets

  • From: Valdis.Kletnieks
  • Date: Wed Dec 03 23:02:56 2003 
On Wed, 03 Dec 2003 15:57:37 PST, Owen DeLong <[email protected]>  said:

> around.  (In fact, I'm hard pressed to imagine how a Frag needed packet
> for an invalid session could do much of anything).

You can use a forged 'frag needed' to stomp an existing connection of the
victim's down to 64 byte MTU or similar silliness, but other than sheer
"it's a packet" DDoS effects, I can't think of a malicious use for one for
an invalid session either....

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