Dropbear SSH integrity error

Zbynek Michl zbynek.michl at gmail.com
Wed Nov 25 21:15:08 AWST 2015


Hi,

So it seems to be fixed in RouterOS 6.34rc8.

Regards,
Zbynek

On Fri, Nov 13, 2015 at 12:32 PM, Zbynek Michl <zbynek.michl at gmail.com> wrote:
> Hi Matt,
>
> Ok, I reported it to Mikrotik, thanks for your help! :)
>
> Regards,
> Zbynek
>
> On Thu, Nov 12, 2015 at 3:01 PM, Matt Johnston <matt at ucc.asn.au> wrote:
>> On Thu, Nov 12, 2015 at 10:28:27AM +0100, Zbynek Michl wrote:
>>> Hello,
>>>
>>> I have a problem with SSH connection from my Ubiquiti AirOS device to
>>> a Mikrotik router.
>>> I use AirOS v5.5.11 (Dropbear SSH client v2013.58) and Mikrotik's
>>> RouterOS version 6.33 (also older versions have the same problem).
>>>
>>> # ssh demo at demo.mt.lv
>>> ssh: Connection to demo at demo.mt.lv:22 exited: Integrity error (bad
>>> packet size -22146333)
>>
>> It looks like ROSSH doesn't support "kex first follows".
>> Commenting out USE_KEX_FIRST_FOLLOWS in sysoptions.h will
>> fix that. Could you report it to Mikrotik? Github used
>> libssh which had the same issue, fixed in libssh 0.7
>>
>> Cheers,
>> Matt


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