Add CRASH_SERVICE_DOWN and "`" badchar

Author: Chocapikk

modules/exploits/linux/http/aitemi_m300_time_rce.rb

@@ -34,6 +34,9 @@ def initialize(info = {})
         ],
         'Platform' => %(linux unix),
         'Arch' => [ARCH_CMD, ARCH_MIPSBE],
+        'Payload' => {
+          'BadChars' => "\x60"
+        },
         'Targets' => [
           [
             'Unix Command',
@@ -63,7 +66,7 @@ def initialize(info = {})
         'Privileged' => true,
         'DisclosureDate' => '2025-08-07',
         'Notes' => {
-          'Stability' => [CRASH_SAFE],
+          'Stability' => [CRASH_SERVICE_DOWN],
           'Reliability' => [REPEATABLE_SESSION],
           'SideEffects' => [IOC_IN_LOGS]
         }