Fixed grequsts/gevents monkey patching of socket code, which lead to paramiko being unable to function after a shellshock scan.

chaos_monkey/exploit/shellshock.py

@@ -92,7 +92,6 @@ class ShellShockExploiter(HostExploiter):
                     LOG.debug("Error running uname machine commad on victim %r: (%s)", host, exc)
                     return False
 
-
             # copy the monkey
             dropper_target_path_linux = self._config.dropper_target_path_linux
             if self.skip_exist and (self.check_remote_file_exists(url, header, exploit, dropper_target_path_linux)):
@@ -193,7 +192,7 @@ class ShellShockExploiter(HostExploiter):
         Checks if which urls exist
         :return: Sequence of URLs to try and attack
         """
-        import grequests
+        import grequests # at this point, it monkey patches half the world and we must stop it
         attack_path = 'http://'
         if is_https:
             attack_path = 'https://'
@@ -203,6 +202,10 @@ class ShellShockExploiter(HostExploiter):
         resps = grequests.map(reqs, size=15)
         valid_resps = [resp for resp in resps if resp and resp.status_code == requests.codes.ok]
         urls = [resp.url for resp in valid_resps]
+
+        # revert monkey patch
+        import socket # this is the monkeypatched socket module
+        reload(socket)
         return urls
 
     @staticmethod