Array2Hex in the automotive extension how supports passing an array or integers or string hexes
Added some extra error handling for UDS calls to non-supported pids
Lots of people have been frustrated by the `sess` command as it mucks
with the autocomplete for `sessions`. This is a fair concern, especially
given that `sess` was intended to be a non-annoying shortcut.
This commit changes the `sess` command so that it is instead called
`terminal`. I couldn't think of a better option that didn't already
clash with another name or meaning. At least `terminal` is something
that doesn't clash, doesn't muck with any existin autocomplete rules,
and is in some way another name for the existing sessions.
Feedback appreciated!
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).