[HamWAN PSDR] OPP outage and vulnerability warning

Bart Kus me at bartk.us
Sat Mar 24 18:19:26 PDT 2018

Seattle-ER1 has been rolled back to a snapshot and is serving OPP 
again.  If your tunnel is still down, please complain.


On 3/24/2018 5:28 PM, Tom Hayward wrote:
> This morning I discovered a bunch of failed login attempts to HamWAN 
> routers coming from other HamWAN routers. When checking the list of 
> logged in users, there weren't any. Apparently something was able to 
> remotely execute code on HamWAN routers without logging in. I think it 
> may be related to this: 
> https://forum.mikrotik.com/viewtopic.php?t=119255. Nigel and I worked 
> to identify the traffic and patch the hole. We were able to stop it 
> through a combination of firewall rules, disabling services, and 
> upgrading software.
> One casualty is that upgrading the software on Seattle-ER1 broke the 
> OPP IPsec configuration. We haven't figured out how to fix this, so 
> OPP is down for now.
> To protect your equipment from this exploit, you can disable 
> unnecessary services like this:
> /ip service disable telnet,ftp,www,api,winbox,api-ssl
> Make sure to do this from SSH so that you know it's working before 
> disabling Winbox!
> This is a reminder of the importance of strict firewall rules. Nigel 
> is a wise man.
> Tom
> _______________________________________________
> PSDR mailing list
> PSDR at hamwan.org
> http://mail.hamwan.net/mailman/listinfo/psdr

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