This commit adds MSF-side support for listing currently loaded drivers
on the machine that Meterpreter is running on. It doesn't add a UI-level
command at this point, as I didn't see the need for it. It is, however,
possible to enumerate drivers on the target using the client API.
Also, the capcom exploit is updated so that it no longer checks for the
existence of the capcom.sys file in a fixed location on disk. Instead,
it enumerates the currently loaded drivers using the new driver listing
function, and if found it checks to make sure the MD5 of the target file
is the same as the one that is expected. The has is used instead of file
version information because the capcom driver doesn't have any version
information in it.
This new command is a simpler shortcut that allows for moving around sessions much faster from within the console.
* From inside MSF, `sess <id>` is shorthand for `sessions -i <id>`
* From inside Meterp, `sess <id>` is shorthand for `background; sessions -i <id>`
In the latter case, if the session being switched to is the same id, then no swiching happens.
I'm aware that this already exists as a post module, but there's nothing more annoying than having to bail out of Meterpreter, use the right module, set up the host list, etc all to just fire off a one-liner.
So this commit adds the command directly to Meterpreter's command line so that you don't have to do all that. This doesn't support specifying a file with the hosts in it (the post module does that). This is intended for quick resolution of particular hosts quickly.
This includes changes to the portfwd command so that the output is
nicer, things are easier to use, and users have the ability to create
reverse port forwards.
In current nomenclature, Rex Sockets are objects created by calls
to Rex::Socket::<Transport>.create and Rex::Socket.create_...
When the LocalHost or Comm parameters are set to remotely routed
addresses (currently via Meterpreter sessions), Rex will create a
Channel which will abstract communications with the remote end of
the session. These channel based abstractions are called pivots,
and present in three separate flavors:
1 - TcpClientChannel, a fully abstracted, selectable Socket.
2 - TcpServerChannel, a virtual Channel which distributes client
channels.
3 - UdpChannel, a virtual Channel which provides common methods for
UDP socket operations, but is not a full (selectable) abstraction.
Unfortunately this differentiation results in inconsistent returns
from the aforementioned socket creation calls, as the call chain
creates parameters and supplies them to the create method on the
comm object referenced in the params. The comm object may be a
channel, and produce a virtual representation of a socket with
functional methods analogous to Sockets, but without a kernel FD.
This commit begins the work of ensuring that all calls for socket
creation return selectable Rex::Socket objects with semantics
familiar to Ruby developers who have not read into the details of
Rex::Socket and Rex::Post.
-----
Summary of changes:
Convert Rex::IO::StreamAbstraction to SocketAbstraction and use
the new mixin in StreamAbstraction and DatagramAbstraction. This
approach allows for common methods to reuse the abstraction data
flow, while initializing separate types of socket obects and an
optional monitor as needed.
In the Rex::Post::Meterpreter namespace, extract common methods
from Stream to a SocketAbstraction mixin, include that mixin in
Stream, and add Datagram with the dio_write handler override
exported from the current implementation of UdpChannel, also using
the mixin. This relies on the Rex::IO work above to implement the
proper type of socket abstraction to the Channel descendants.
In Rex::Post::Meterpreter::Extensions::Stdapi::Net, convert the
UdpChannel to inherit from the Rex::Post::Meterpreter::Datagram
class, implementing only the send method at this tier. Convert
create_udp_channel to return the local socket side of the datagram
abstraction presented analogous to the TcpClientChannel approach
used before.
-----
Notes and intricacies:
In order to implement recvfrom on the UDP abstraction, a shim layer
has been put in place to forward the sockaddr information from the
remote peer to the local UDP socketpair in the abstraction. This
information takes up buffer space in the UDP socket, and in order
to maintain compatibility with consumers, the dio_write_handler
pushes the data buffer, and in a separate send call, he sockaddr
information from the remote socket. On the abstraction side, the
recvfrom_nonblock call of the real UDPSocket has been overriden
via the mixed in module to call the real method twice, once for
the data buffer, and once for the packed sockaddr data. The Rex
level consumer for recvfrom calls the underlying nonblock method
and expects this exact set of returns (as opposed to what standard
library UDPSocket.recvfrom returns, which is a data buffer and an
Array of sockaddr data).
-----
Testing:
Local and lab testing only so far.
Test RC script to be added in GH comments.
-----
Issues:
Currently, sendto on a remote socket does not appear to honor
LocalPort which causes DNS responses (#6611) to come from the
wrong port to remote clients being serviced over a pivot socket.
We add finalizers to an assortment of Meterpreter-managed objects in order to
clean things up in the event that a post module crashes and does not clean
things up. However, this also means that even a properly-written post module
can lead to an object getting double-closed on the Meterpreter session when the
garbage collector kicks in. This can lead to quite non-deterministic behavior
and crashes.
This change modifies the instance close methods to unregister the finalizer on
close, ensuring we cannot do a double-close automatically if one is requested
explicitly first. As an additional measure, we check an instance variable to
see if we called close directly twice as well. This is not sufficient in
itself, since we do not have a reference to 'self' in the finalizer proc to
check the close state.
This also removes a couple of references to 'self' in the finalizer proc
itself, which may cure some memory leaks as well due to circular references.
The method is used as follows:
if notify_response_waiter(response)
# Proceed as if a waiter was notified
end
Previously the return value would be `nil` whenever the loop broke early
due to a waiter being found. This meant that the dispatcher thread often
believed that a packet was not being handled. As a result the
backlog == incomplete sleep kicked in unnecessarily.
This commit changes the migrate function so that an optional timeout parameter can be given. This means that people in high-latency scenarios can extend the timeout when migration in order to increase the chances that things will work.
adsi_group_enum - Lists all groups on the specified domain
adsi_nested_group_user_enum - Lists all users on the specified domain who are members of a given group DN (taking into account recursive/nested groups)
This commit does a few tidies of code, as well as adds the ability to
write all the kiwi output to disk as well as to the console. We can't
yet add this stuff to the credential DB because it's tied to machine,
where the creds that come out of kiwi are often tied to domains.
This also removes duplicate creds from the output list, and gets rid of
the auth id stuff from the output too (not sure why it was useful
before).
It should not look like this:
```
meterpreter > ps -h
Usage: ps [ options ]
OPTIONS:
-S Search string to filter by
-h This help menu
```
It should not not look like this:
```
meterpreter > ps -h
Use the command with no arguments to see all running processes.
The following options can be used to filter those results:
OPTIONS:
-A <opt> Filters processes on architecture (x86 or x86_64)
-S <opt> String to search for (converts to regex)
-U <opt> Filters processes on the user using the supplied RegEx
-h Help menu.
-s Show only SYSTEM processes
```
Allow searching through netstat output tables for specific strings.
Example:
```
meterpreter > netstat -S 192
Connection list
===============
Proto Local address Remote address State User Inode PID/Program name
----- ------------- -------------- ----- ---- ----- ----------------
tcp 10.1.1.20:3389 192.168.100.186:38470 ESTABLISHED 0 0 3076/svchost.exe
tcp 10.1.1.20:63826 192.168.100.186:31158 ESTABLISHED 0 0 4568/powershell.exe
tcp 10.1.1.20:64887 192.168.100.186:31158 ESTABLISHED 0 0 -
```
from @sempervictus
Merge forked changes to cmd_ps allowing for the use of string
matching on listing output via Rex::Ui::Text::Table's SearchTerm
facility
Example:
```
meterpreter > ps -S x64.*Auth.*Sys
Process list
============
PID Name Arch Session User Path
--- ---- ---- ------- ---- ----
400 smss.exe x64 0 NT AUTHORITY\SYSTEM C:\Windows\System32\smss.exe
...
```
from @sempervictus
Merge forked changes to cmd_ls allowing for the use of string
matching on listing output via Rex::Ui::Text::Table's SearchTerm
facility.
Example:
```
meterpreter > ls chef -R -S wget
No entries exist in chef/backup/chef/handlers
No entries exist in chef/backup/chef/ohai_plugins
No entries exist in chef/backup/chef
No entries exist in chef/backup
No entries exist in chef/cache/cookbooks/avast/attributes
No entries exist in chef/cache/cookbooks/avast/recipes
No entries exist in chef/cache/cookbooks/avast
No entries exist in chef/cache/cookbooks/chef-client/attributes
No entries exist in chef/cache/cookbooks/chef-client/libraries
No entries exist in chef/cache/cookbooks/chef-client/recipes
No entries exist in chef/cache/cookbooks/chef-client
No entries exist in chef/cache/cookbooks/chef_handler/attributes
No entries exist in chef/cache/cookbooks/chef_handler/libraries
No entries exist in chef/cache/cookbooks/chef_handler/providers
No entries exist in chef/cache/cookbooks/chef_handler/recipes
No entries exist in chef/cache/cookbooks/chef_handler/resources
No entries exist in chef/cache/cookbooks/chef_handler
No entries exist in chef/cache/cookbooks/cron/providers
No entries exist in chef/cache/cookbooks/cron/recipes
No entries exist in chef/cache/cookbooks/cron/resources
No entries exist in chef/cache/cookbooks/cron
No entries exist in chef/cache/cookbooks/logrotate/attributes
No entries exist in chef/cache/cookbooks/logrotate/definitions
No entries exist in chef/cache/cookbooks/logrotate/libraries
No entries exist in chef/cache/cookbooks/logrotate/recipes
No entries exist in chef/cache/cookbooks/logrotate
No entries exist in chef/cache/cookbooks/ohai/attributes
No entries exist in chef/cache/cookbooks/ohai/files/default/plugins
No entries exist in chef/cache/cookbooks/ohai/files/default
No entries exist in chef/cache/cookbooks/ohai/files
No entries exist in chef/cache/cookbooks/ohai/recipes
No entries exist in chef/cache/cookbooks/ohai
No entries exist in chef/cache/cookbooks/svit-windows/attributes
No entries exist in chef/cache/cookbooks/svit-windows/recipes
No entries exist in chef/cache/cookbooks/svit-windows/templates/default/plugins
No entries exist in chef/cache/cookbooks/svit-windows/templates/default
No entries exist in chef/cache/cookbooks/svit-windows/templates
No entries exist in chef/cache/cookbooks/svit-windows
No entries exist in chef/cache/cookbooks/windows/attributes
No entries exist in chef/cache/cookbooks/windows/files/default/handlers
No entries exist in chef/cache/cookbooks/windows/files/default
No entries exist in chef/cache/cookbooks/windows/files
No entries exist in chef/cache/cookbooks/windows/libraries
No entries exist in chef/cache/cookbooks/windows/providers
No entries exist in chef/cache/cookbooks/windows/recipes
No entries exist in chef/cache/cookbooks/windows/resources
No entries exist in chef/cache/cookbooks/windows
No entries exist in chef/cache/cookbooks
No entries exist in chef/cache
No entries exist in chef/handlers
No entries exist in chef/log
No entries exist in chef/ohai_plugins
No entries exist in chef/run
Listing: chef
=============
Mode Size Type Last modified Name
---- ---- ---- ------------- ----
100666/rw-rw-rw- 161 fil 2014-07-21 11:08:26 -0400 wget.ps1
100666/rw-rw-rw- 1285 fil 2014-07-21 11:08:26 -0400 wget.vbs
meterpreter >
```
This makes meterpeter shut down it's comms and sleep for a while before
it attempts to open communications again. This is effectively the same
as doing a transport change back to the same transport, but with
a timeout.
Merged with HD's stuff as he fixed up a few things that I had done too.
Conflicts:
lib/msf/base/sessions/meterpreter_options.rb
lib/rex/post/meterpreter/client_core.rb
lib/rex/post/meterpreter/packet_dispatcher.rb
Timeouts are correctly passed through to the client instances from the
handlers. The cilent also passes those values through to the RDI code so
that the binaries are correctly patched.
the NTDS Parser class will take a meterpreter
client and a fielpath and provide an enumerator for reading
out the user accounts as ruby objects
MSP-12357
The 'next' and 'prev' commands were added so that the session can jump
transports without having to add new ones at the same time.
There's also a command which gives the UUID now so that this can be
reused across sessions.
Migration now uses the new meterpreter loader. Migration configuration
is loaded and created by meterpreter on the fly, and supports the
multiple transport stuff that's just been wired in.
added a priv extension method to open
a stream channel to read ntdsaccounts from
and an NTDS account class to accept the
data and parse it into a useable structure
MSP-12357
The original URI is registered as '/foobar/' but is deregistered as
'//foobar/', causing it to never get deregistered. Changing this fixes
unregistration of the service handler for staged payloads, but stageless
doesn't work properly if the URI actually gets deregistered.
Rather than listening forever after a session shuts down, close the session if
there are no other URI's registered on the listener. This allows reconfiguring
the listener without restarting framework, but should be safe for situations
where multiple modules share the same listener.
Brent Cook
OJ
nixawk
Tim
William Vu
Spencer McIntyre
David Maloney
Danil Bazin
caye
James Lee
Brent Cook
Adam Cammack
RageLtMan
HD Moore
HD Moore
Artem
Jon Hart
Jon Cave
wchen-r7
jvazquez-r7
Stuart
Stuart Morgan
Joshua Smith
Mo Sadek
Jack64
Jack64
rwhitcroft
Tod Beardsley
Meatballs