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New Active Exploit: memcached on port 11211 UDP & TCP being exploited for reflection attacks
- Subject: New Active Exploit: memcached on port 11211 UDP & TCP being exploited for reflection attacks
- From: justin at cloudflare.com (Justin Paine)
- Date: Tue, 27 Feb 2018 14:31:54 -0800
- In-reply-to: <[email protected]>
- References: <[email protected]> <CAD6AjGQx__RNnWADF=TnaUBjN+fVpezQpM9qmFMF_G0KSj3LrQ@mail.gmail.com> <[email protected]>
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 at 2bithacker.net> wrote:
> On 2018-02-27, Ca By <cb.list6 at 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 at 2bithacker.net>
> http://2bithacker.net/