Das geht aber nach, dem Befehl:
sysctl -w security.mac.proc_enforce=0 security.mac.vnode_enforce=0 /aircrack

Kommt das:
security.mac.proc_enforc: 0
sysctl: security.mac.proc_enforce: Operation not permitted
security.mac.vnode_enforce: 1
sysctl: security.mac.proc_enforce: Operation not permitted