sort out env variables.

cowrie/commands/__init__.py

@@ -8,6 +8,7 @@ __all__ = [
     'busybox',
     'curl',
     'dice',
+    'env',
     'ethtool',
     'fs',
     'gcc',

cowrie/commands/busybox.py

@@ -55,7 +55,7 @@ class command_busybox(HoneyPotCommand):
             line = ' '.join(args)
             cmd = args[0]
             args = args[1:]
-            cmdclass = self.protocol.getCommand(cmd, self.env['PATH'].split(':'))
+            cmdclass = self.protocol.getCommand(cmd, self.environ['PATH'].split(':'))
             if cmdclass:
                 log.msg(eventid='KIPP0005', input=line, format='Command found: %(input)s')
                 self.protocol.call_command(cmdclass, *args)

cowrie/commands/sudo.py

@@ -92,7 +92,7 @@ Sudoers I/O plugin version 1.8.5p2''')
             line = ' '.join(args)
             cmd = args[0]
             args = args[1:]
-            cmdclass = self.protocol.getCommand(cmd, self.env['PATH'].split(':'))
+            cmdclass = self.protocol.getCommand(cmd, self.environ['PATH'].split(':'))
             if cmdclass:
                 log.msg(eventid='KIPP0005', input=line, format='Command found: %(input)s')
                 self.protocol.call_command(cmdclass, *args)

cowrie/commands/which.py

@@ -12,12 +12,12 @@ class command_which(HoneyPotCommand):
         """ Look up all the arguments on PATH and print each (first) result """
 
         # No arguments, just exit
-        if not len(self.args) or not 'PATH' in self.env:
+        if not len(self.args) or not 'PATH' in self.environ:
             return
 
         # Look up each file
         for f in self.args:
-            for path in self.env['PATH'].split(':'):
+            for path in self.environ['PATH'].split(':'):
                 resolved = self.fs.resolve_path(f, path)
 
                 if self.fs.exists(resolved):

cowrie/core/honeypot.py

@@ -21,7 +21,7 @@ class HoneyPotCommand(object):
     def __init__(self, protocol, *args):
         self.protocol = protocol
         self.args = args
-        self.env = self.protocol.cmdstack[0].envvars
+        self.environ = self.protocol.cmdstack[0].environ
         self.writeln = self.protocol.writeln
         self.write = self.protocol.terminal.write
         self.nextLine = self.protocol.terminal.nextLine
@@ -92,9 +92,7 @@ class HoneyPotShell(object):
         self.interactive = interactive
         self.showPrompt()
         self.cmdpending = []
-        self.envvars = {
+        self.environ = protocol.environ
-            'PATH':     '/bin:/usr/bin:/sbin:/usr/sbin',
-            }
 
 
     def lineReceived(self, line):
@@ -146,13 +144,13 @@ class HoneyPotShell(object):
             return
 
         # Probably no reason to be this comprehensive for just PATH...
-        envvars = copy.copy(self.envvars)
+        environ = copy.copy(self.environ)
         cmd = None
         while len(cmdAndArgs):
             piece = cmdAndArgs.pop(0)
             if piece.count('='):
                 key, value = piece.split('=', 1)
-                envvars[key] = value
+                environ[key] = value
                 continue
             cmd = piece
             break
@@ -169,7 +167,7 @@ class HoneyPotShell(object):
                 rargs.extend(matches)
             else:
                 rargs.append(arg)
-        cmdclass = self.protocol.getCommand(cmd, envvars['PATH'].split(':'))
+        cmdclass = self.protocol.getCommand(cmd, environ['PATH'].split(':'))
         if cmdclass:
             log.msg(eventid='KIPP0005', input=line, format='Command found: %(input)s')
             self.protocol.call_command(cmdclass, *rargs)

cowrie/core/protocol.py

@@ -26,6 +26,7 @@ class HoneyPotBaseProtocol(insults.TerminalProtocol, TimeoutMixin):
 
     def __init__(self, avatar):
         self.user = avatar
+        self.environ = avatar.environ
         self.cfg = self.user.cfg
         self.hostname = avatar.server.hostname
         self.fs = avatar.server.fs

cowrie/core/ssh.py

@@ -567,13 +567,16 @@ class SSHSessionForCowrieUser:
             requests. Uses the default reactor if None.
         """
         self.protocol = None
-        self.environ = {'PATH': '/bin:/usr/bin:/usr/local/bin'}
         self.avatar = avatar
         self.server = avatar.server
         self.cfg = avatar.cfg
         self.uid = avatar.uid
         self.gid = avatar.gid
         self.username = avatar.username
+        self.environ = {'PATH': '/bin:/usr/bin:/usr/local/bin',
+            'LOGNAME': self.username,
+            'USER': self.username,
+            'HOME': self.avatar.home}
 
 
     def openShell(self, proto):
@@ -588,6 +591,7 @@ class SSHSessionForCowrieUser:
     def getPty(self, terminal, windowSize, attrs):
         """
         """
+        self.environ['TERM'] = terminal
         log.msg(eventid='KIPP0010', width=windowSize[0], height=windowSize[1],
             format='Terminal Size: %(width)s %(height)s')
         self.windowSize = windowSize