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).
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9160
Reference (s):
- http://www.cnvd.org.cn/flaw/show/CNVD-2019-07680