Community discussions

MikroTik App
 
vijaykumaryadav4u
just joined
Topic Author
Posts: 7
Joined: Tue Jan 02, 2018 3:24 pm

How to protect CCR router from DNS attacker.

Thu May 24, 2018 3:58 pm

I have CCR routerboard since last 2days attackers were able to change DNS settings on Mikrotik router via api interface, so the clients were directed to attacker's servers, as you can no doubt of guess SSL secured services immediately warned about certificate issue on clients' browsers. DNS was the only setting that was changed, so we did not have any other issue, changed to DNS servers.

192.200.110.108 > is set as DNS server by the attacker.
 
User avatar
mrz
MikroTik Support
MikroTik Support
Posts: 7056
Joined: Wed Feb 07, 2007 12:45 pm
Location: Latvia
Contact:

Re: How to protect CCR router from DNS attacker.

Thu May 24, 2018 4:02 pm

Upgrade ROS to latest version, do not allow access to the router from public networks.
 
User avatar
sch
Frequent Visitor
Frequent Visitor
Posts: 75
Joined: Tue Feb 26, 2013 1:05 pm

Re: How to protect CCR router from DNS attacker.

Thu May 24, 2018 4:02 pm

Read this thread: viewtopic.php?f=2&t=134793
 
pe1chl
Forum Guru
Forum Guru
Posts: 10240
Joined: Mon Jun 08, 2015 12:09 pm

Re: How to protect CCR router from DNS attacker.

Thu May 24, 2018 4:03 pm

Make sure that external attackers have no access to your router.
Do this by setting up a proper ip->firewall->filter input chain.
Only trusted networks should have access to your router.
 
User avatar
anav
Forum Guru
Forum Guru
Posts: 19379
Joined: Sun Feb 18, 2018 11:28 pm
Location: Nova Scotia, Canada
Contact:

Re: How to protect CCR router from DNS attacker.

Thu May 24, 2018 11:20 pm

Why was api service enabled?

Who is online

Users browsing this forum: anav, CHUPAPEE, GoogleOther [Bot], jaclaz, li77616211 and 173 guests