![]() ![]() Once this has been set, only addresses in the specified list of addresses will be able to connect. You can use the following command to set up a number of allowed IP addresses/networks that can connect to the WinBox service. If the remote device that needs to connect has a static IP address that doesn’t change, you can set up a filter on the WinBox service itself, using an “Available From” list. Sometimes you may need to remotely manage a RouterOS device using WinBox. Restrict WinBox access using the “Available From” list If you manage your router using another method, such as SSH, and you don’t actually need WinBox access, you can simply disable the WinBox service. You may not need to do all of them to prevent this vulnerability, but the more locked down the router is, the better. Here are some options to prevent your RouterOS device from being exploited. However, there is a chance that this could be exploited from inside the LAN by a malicious user if your rules allow access on the LAN side.įor more information on the exploit, please read the forum post on the Mikrotik site:Īdvisory: Vulnerability exploiting the Winbox port This remote exploit relies on the WinBox service being accessible, so if you don’t have that enabled, or you are blocking it via a IP firewall rule, or are restricting users via the WinBox services ‘Available From’ list, you should be safe from this vulnerability effecting you. ![]() This will appear in the RouterOS logs, as a WinBox connection attempt that fails, and then a second attempt, which is successful. The remote user can then log in, and take control of the router. While it currently remains uncertain exactly how the exploit works, it would appear that a remote user can connect to the WinBox port (which is port 8291 by default), and download a user database file, without successfully authenticating. Version 6.42.1 for current (and v6.43rc4 for release candidate), has just been released, which has fixed this vulnerability, and should be upgraded to as soon as possible. This is currently effecting RouterOS versions v6.29 through to v6.42 in the current channel (and up to v6.43rc3 in the release candidate channel). I solved it! I tried the NetInstall on a laptop and ethernet 1 several times until it detected it! so I could reinstall routerOS normally.It was discovered on the 23rd of April 2018, that there was a remote vulnerability being exploited in the wild, that is exploiting the Winbox service on RouterOS based devices (Mikrotik / Routerboard devices). I will buy another routerboard exactly like this tomorrow, I have a backup from March, Can I set up the new one and restore that backup normally? or do I have to do something else? Maybe the flash was corrupted? or something like that? I tried with other cables and I tried connecting directly to other pcs/laptopsĪnd literally NOTHING is working. I don't have any more networks, I disabled firewall/windows defender, I disabled other NICs. I even tried to install a new routerOS via netinstall (with pressing the reset button for 15 seconds and releasing when the light is off) and the netinstall program didn't show the routerboard I tried to enter manually the mac address of the router on winbox I set my pc ip to 192.168.88.3 and tried to enter to 192.168.88.1 via winbox and via browser I applied the hardware reset (pressing the reset button waiting for the USR to blink for 5 seconds) I did the following connected DIRECTLY from my pc to the routerboard via ethernet cable to the ethernet 5 of the routerboard: ![]() Hi, I had to hard reset my routerboard because it said "Database image is malformed" in the log and some configurations were gone (this happened after a power outage), I tried to restore it with a backup I had and it didn't work. ![]()
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