WAC on the Sangfor Sundray WLAN Controller version 3.7.4.2 and earlier has a backdoor account allowing a remote attacker to login to the system via SSH (on TCP port 22345) and escalate to root (because the password for root is the WebUI admin password concatenated with a static string).
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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