Update intercepting communication monitor levels

dojo.yml

@@ -35,11 +35,9 @@ modules:
   - id: level-4
     name: Scan 2
   - id: level-5
-    name: level5
-    description: Monitor traffic from a remote host
+    name: Monitor 1
   - id: level-6
-    name: level6
-    description: Monitor slow traffic from a remote host
+    name: Monitor 2
   - id: level-7
     name: level7
     description: Hijack traffic from a remote host by configuring your network interface

intercepting-communication/level-5/.init

@@ -0,0 +1 @@
+../.init

intercepting-communication/level-5/DESCRIPTION.md

@@ -0,0 +1,2 @@
+Monitor traffic from a remote host.
+Your host is already receiving traffic on port `31337`.

intercepting-communication/level-5/run

@@ -0,0 +1,39 @@
+#!/usr/bin/exec-suid --real -- /usr/bin/python -I
+
+import socket
+import time
+from dojjail import Host, Network
+
+flag = open("/flag").read()
+
+class ClientHost(Host):
+    def entrypoint(self):
+        while True:
+            try:
+                client_socket = socket.socket()
+                client_socket.connect(("10.0.0.2", 31337))
+                client_socket.sendall(flag.encode())
+                client_socket.close()
+                time.sleep(10)
+            except (ConnectionError, TimeoutError):
+                continue
+
+class ServerHost(Host):
+    def entrypoint(self):
+        server_socket = socket.socket()
+        server_socket.bind(("0.0.0.0", 31337))
+        server_socket.listen()
+        while True:
+            try:
+                connection, _ = server_socket.accept()
+                connection.recv(1024)
+                connection.close()
+            except ConnectionError:
+                continue
+
+user_host = ClientHost("ip-10-0-0-1")
+server_host = ServerHost("ip-10-0-0-2")
+network = Network(hosts={user_host: "10.0.0.1", server_host: "10.0.0.2"}, subnet="10.0.0.0/24")
+network.run()
+
+user_host.interact()

intercepting-communication/level-6/.init

@@ -0,0 +1 @@
+../.init

intercepting-communication/level-6/DESCRIPTION.md

@@ -0,0 +1,2 @@
+Monitor slow traffic from a remote host.
+Your host is already receiving traffic on port `31337`.

intercepting-communication/level-6/run

@@ -0,0 +1,41 @@
+#!/usr/bin/exec-suid --real -- /usr/bin/python -I
+
+import socket
+import time
+from dojjail import Host, Network
+
+flag = open("/flag").read()
+
+class ClientHost(Host):
+    def entrypoint(self):
+        while True:
+            try:
+                client_socket = socket.socket()
+                client_socket.connect(("10.0.0.2", 31337))
+                for c in flag:
+                    client_socket.sendall(c.encode())
+                    time.sleep(1)
+                client_socket.close()
+                time.sleep(10)
+            except (ConnectionError, TimeoutError):
+                continue
+
+class ServerHost(Host):
+    def entrypoint(self):
+        server_socket = socket.socket()
+        server_socket.bind(("0.0.0.0", 31337))
+        server_socket.listen()
+        while True:
+            try:
+                connection, _ = server_socket.accept()
+                connection.recv(1024)
+                connection.close()
+            except ConnectionError:
+                continue
+
+user_host = ClientHost("ip-10-0-0-1")
+server_host = ServerHost("ip-10-0-0-2")
+network = Network(hosts={user_host: "10.0.0.1", server_host: "10.0.0.2"}, subnet="10.0.0.0/24")
+network.run()
+
+user_host.interact()