Easywall 0.3.1 allows authenticated remote command execution via a command injection vulnerability in the /ports-save endpoint that suffers from a parameter injection flaw. Attackers can inject shell metacharacters to execute arbitrary commands on the server.
Exploitability
AV:NAC:LAT:NPR:LUI:NVulnerable System
VC:HVI:HVA:HSubsequent System
SC:NSI:NSA:N8.7/CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NOther