We addressed the weak DDOS amplification in 2017 based on a report to our
Bug Bounty Program ( https://hackerone.com/ubnt ), but this article seems
to be associating any and all security issues from the last and
representing them as new. There is a security report related to the
discovery protocol that is under investigation that in some cases can lead
to the radio losing management access until a reboot.  Restricting access
to discovery on public-facing radios would be a good step to take until we
have more info on the management + discovery bug.   In v8.5.8 we added the
option to limit management/discovery access by subnet/cidr to further
simplify protecting radios (router mode only)

8.3.2 (XC, WA) Changelog / September 1, 2017
New: Add support for RFC 6598 (CGN) private IP responses via Discovery

8.1.3 (XC, WA) Changelog / June 2, 2017
Use TCP protocol instead of UDP for UBNT discovery queries from Public IPs

6.0.7 (XM/XW/TI) Changelog / September 8, 2017
New: * New: Add support for RFC 6598 (CGN) private IP responses via
Discovery

6.0.4 (XM/XW/TI) Changelog / May 5, 2017
Fix: Limit discovery response to queries from private subnets or
multicast/broadcast

On Tue, Feb 5, 2019 at 4:44 PM Matt Hoppes <
[email protected]> wrote:

> Ubiquiti claims it can’t be used as an amplifier. I’m not sure how I
> believe them.
>
> On Feb 5, 2019, at 4:19 PM, Mathew Howard <[email protected]> wrote:
>
> Can you get lower grade WISP equipment?
>
> On Tue, Feb 5, 2019 at 12:51 PM Adam Moffett <[email protected]> wrote:
>
>> it's all relative
>>
>> On 2/5/2019 10:28 AM, Mathew Howard wrote:
>>
>> "Most affected devices are high-grade WISP equipment"
>>
>> 😂
>>
>> On Tue, Feb 5, 2019 at 9:23 AM Steve Jones <[email protected]>
>> wrote:
>>
>>> am i the only one who shuts off discovery?
>>>
>>> On Tue, Feb 5, 2019 at 8:25 AM Ken Hohhof <[email protected]> wrote:
>>>
>>>> Is it my imagination, or does that article veer off toward the end into
>>>> stuff that may not be Ubiquiti problems at all?  And from the description
>>>> of the problem, I don’t see how it would lead to radios being “defaced”,
>>>> just used as an amplifier via Ubiquiti Discovery Protocol.
>>>>
>>>>
>>>>
>>>> *From:* AF <[email protected]> *On Behalf Of *Jaime Solorza
>>>> *Sent:* Monday, February 4, 2019 7:00 PM
>>>> *To:* AnimalFarm Microwave Users Group <[email protected]>
>>>> *Subject:* [AFMUG] Over 485, 000 Ubiquiti devices vulnerable to new
>>>> attack | ZDNet
>>>>
>>>>
>>>>
>>>>
>>>> https://www.zdnet.com/article/over-485000-ubiquiti-devices-vulnerable-to-new-attack/
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