- ZYXEL FIRMWARE MODIFICATION MODS
- ZYXEL FIRMWARE MODIFICATION VERIFICATION
- ZYXEL FIRMWARE MODIFICATION SOFTWARE
You do have to wonder who on earth is installing these things and choosing to allow the admin interface to be internet facing. WAN) you can and should drop the device because that is a major flaw with no workaround. If you can't configure the device to ignore authentication attempts from untrusted sources (i.e. Configure your devices properly and undocumented user accounts aren't an issue because the device won't even attempt authentication from an untrusted source.
If management protocols are exposed to the WAN, you've already lost. I am going to mitigate, update, and verify that ACLs are properly applied such that my gear won't accept SSH connections from places it shouldn't. Am I or anyone else going to rip my Cisco switches and routers running IOS-XE out of my network over it? No.
ZYXEL FIRMWARE MODIFICATION SOFTWARE
Cisco had an undocumented account in their IOS-XE software with the username cisco at privilege 15. Assume they are there due to the requests/demands of a state actor. Here's one for FortiGate where an unauthenticated user could cause arbitrarily set the password of a valid user.īut you can tell that the developers try hard on the security front, instead of hardcoding internet facing admin accounts.Īssume every vendor has undocumented user accounts built into the software. Here's one for CheckPoint where an unauthorized user could cause the ISAKMP processor to execute arbitrary code. Am I going to rip my brand new $200k Palo Altos out of my network? Absolutely not. Here's one for Palo Alto where an unauthorized user could execute arbitrary code on the GlobalProtect (VPN) gateway. but not because of this, but because ASAs are hot garbage. Am I going to rip ASAs out of my nework? Yes. Here's one for Cisco where ASAs and FTDs had an issue where the firewall's own interpreter could be leveraged to execute arbitrary code. u/RoweDent created this awesome resource on network theoryĮvery security appliance vendor has critical CVEs. u/tht1kidd_ has created a suggestion post regarding information everyone needs to provide when asking a question about their network
There have been some excellent guides written in this sub, and we're always looking for more!
ZYXEL FIRMWARE MODIFICATION MODS
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