Backdoor in Zyxel Firewalls and Gateways
Schneier on Security
JANUARY 6, 2021
This is bad : More than 100,000 Zyxel firewalls, VPN gateways, and access point controllers contain a hardcoded admin-level backdoor account that can grant attackers root access to devices via either the SSH interface or the web administration panel. […]. Installing patches removes the backdoor account, which, according to Eye Control researchers, uses the “zyfwp” username and the “PrOw!
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