Re: New Active Exploit: memcached on port 11211 UDP & TCP being exploited for reflection attacks

[Justin Paine via NANOG <nanog () nanog org>]

Thanks Chip!

____________
Justin Paine
Head of Trust & Safety
Cloudflare Inc.
PGP: BBAA 6BCE 3305 7FD6 6452 7115 57B6 0114 DE0B 314D


On Tue, Feb 27, 2018 at 1:52 PM, Chip Marshall <chip () 2bithacker net> wrote:
> On 2018-02-27, Ca By <cb.list6 () gmail com> sent:
> > Please do take a look at the cloudflare blog specifically as they name and
> > shame OVH and Digital Ocean for being the primary sources of mega crap
> > traffic
> >
> > https://blog.cloudflare.com/memcrashed-major-amplification-attacks-from-port-11211/
> >
> > Also, policer all UDP all the time... UDP is unsafe at any speed.
>
> Hi, DigitalOcean here. We've taken steps to mitigate this attack on our network.
>
> Also, we've only seen udp/11211 being a problem. I'd be interested to
> hear of anyone seeing tcp/11211 attacks.
>
> --
> Chip Marshall <chip () 2bithacker net>
> http://2bithacker.net/