Note that there are some cases of host-endian left, these
are intentional because they operate on host-local memory
or services.
When in doubt, please use:
```
ri pack
```
Ruby treats endianess in pack operators in the opposite way
of python. For example, using pack('<I') actually ignores the
endianess specifier. These need to be 'I<' or better yet, 'V'.
The endian specify must occur after the pack specifier and
multiple instances in meterpreter and exe generation were
broken in thier usage.
The summary:
Instead of I/L or I< use V
Instead of I/L or I> use N
For Q, you need to always use Q< (LE) or Q> (BE)
For c/s/l/i and other lowercase variants, you probably dont
need or want a *signed* value, so stick with vV nN and cC.
This reverts commit 9b35b0e13a.
This should not land on master until the Metasploit Pro folks (@trosen-r7
and friends) get their Meterpreter path specifications working the
same way as Framework's does.
a change was made to protspec that allowed port 0
when we explicitly dissallowed port 0. This change caused
other code that depended on this behaviour to break
JodaZ reported that the handle_connection() sock.put call can
result in the entire reverse_tcp stager hanging if the client
stops receiving or is on a very slow link. The solution emulates
what ReverseTcpDouble already does, which is stage each connection
in a new thread. However, given that a high number of threads
can be a problem on some operating systems (*ahem* win32) this
option is not enabled by default.
We should look into thread pooling and handle_connection() timeouts
as well as event-based polling of multiple clients as alternatives,
but this option will improve the situation for our existing users.
Even though there are calls to has_read_data(), it doesn't prevent
the put() call from blocking in a dead client or slowaris-like
situation. By moving the inp/out detection into the thread, we
allow the main handler to keep processing connections even if
a single connection hangs.
Unfortunately, though, there seems to be a stealthy set, somewhere, of
datastore['DLL']. Not sure where yet. The stack trace in the
framework.log is:
````
[06/19/2014 17:53:34] [i(0)] core: windows/meterpreter/reverse_http: iteration 1: Successfully encoded with encoder x86/fnstenv_mov (size is
366)
[06/19/2014 17:53:35] [e(0)] rex: Proc::on_request: Errno::ENOENT: No such file or directory -
/home/todb/git/rapid7/metasploit-framework/data/meterpreter/metsrv.x86.dll
/home/todb/git/rapid7/metasploit-framework/lib/msf/core/reflective_dll_loader.rb:26:in `initialize'
/home/todb/git/rapid7/metasploit-framework/lib/msf/core/reflective_dll_loader.rb:26:in `open'
/home/todb/git/rapid7/metasploit-framework/lib/msf/core/reflective_dll_loader.rb:26:in `load_rdi_dll'
/home/todb/git/rapid7/metasploit-framework/lib/msf/core/payload/windows/reflectivedllinject.rb:56:in `stage_payload'
/home/todb/git/rapid7/metasploit-framework/lib/msf/core/handler/reverse_http.rb:212:in `on_request'
/home/todb/git/rapid7/metasploit-framework/lib/msf/core/handler/reverse_http.rb:129:in `block in setup_handler'
/home/todb/git/rapid7/metasploit-framework/lib/rex/proto/http/handler/proc.rb:38:in `call'
/home/todb/git/rapid7/metasploit-framework/lib/rex/proto/http/handler/proc.rb:38:in `on_request'
/home/todb/git/rapid7/metasploit-framework/lib/rex/proto/http/server.rb:365:in `dispatch_request'
/home/todb/git/rapid7/metasploit-framework/lib/rex/proto/http/server.rb:299:in `on_client_data'
/home/todb/git/rapid7/metasploit-framework/lib/rex/proto/http/server.rb:158:in `block in start'
/home/todb/git/rapid7/metasploit-framework/lib/rex/io/stream_server.rb:48:in `call'
/home/todb/git/rapid7/metasploit-framework/lib/rex/io/stream_server.rb:48:in `on_client_data'
/home/todb/git/rapid7/metasploit-framework/lib/rex/io/stream_server.rb:192:in `block in monitor_clients'
/home/todb/git/rapid7/metasploit-framework/lib/rex/io/stream_server.rb:190:in `each'
/home/todb/git/rapid7/metasploit-framework/lib/rex/io/stream_server.rb:190:in `monitor_clients'
/home/todb/git/rapid7/metasploit-framework/lib/rex/io/stream_server.rb:73:in `block in start'
/home/todb/git/rapid7/metasploit-framework/lib/rex/thread_factory.rb:22:in `call'
/home/todb/git/rapid7/metasploit-framework/lib/rex/thread_factory.rb:22:in `block in spawn'
/home/todb/git/rapid7/metasploit-framework/lib/msf/core/thread_manager.rb💯in `call'
/home/todb/git/rapid7/metasploit-framework/lib/msf/core/thread_manager.rb💯in `block in spawn'
````
Still tracking this down.
This was a whoops on my part. I will reland this when I have the
Meterpreter bins all sorted.
This reverts commit 40b5405053, reversing
changes made to 86e4eaaaed.
* I verified that changes to PDF mixin do not affect any older modules that
generate PDF. I did this by (on each branch) running in irb, then
running the module and diffing the pdf's generated by each branch. There were
no changes.
* This refactors the logic of webview_addjavascriptinterface into a mixin (android.rb).
* Additionally, some behavior in pdf.rb had to be modified (in backwards-compatible ways).
Conflicts:
lib/msf/core/exploit/mixins.rb
To be clear, the shell that was tested with was 'windows/shell_reverse_tcp' delivered via 'exploit/windows/smb/psexec'
Additional changes required to fix regex to support the multiline output. Also, InstanceId uses a lower case 'D' on the platforms I tested - PowerShell 2.0 on Windows 2003, Windows 7, Windows 2008 R2 as well as PowerShell 4.0 on Windows 2012 R2.
This method doesn't appear to be used anywhere in the Metasploit codebase currently.
I have a case where on a Windows 2008 R2 host with PowerShell 2.0 the 'have_powershell' method times out. When I interactively run the command I find that the output stops after the PowerShell command and the token from 'cmd_exec' is NOT displayed. When I hit return the shell then processes the '&echo <randomstring>' and generates the token that 'cmd_exec' was looking for. I tried various versions of the PowerShell command string such as 'Get-Host;Exit(0)', '$PSVErsionTable.PSVersion', and '-Command Get-Host' but was unable to change the behavior. I found that adding 'echo. | ' simulated pressing enter and did not disrupt the results on this host or on another host where the 'have_powershell' method functioned as expected.
There may be a better solution, but this was the only one that I could find.
Jon Hart
HD Moore
Tod Beardsley
Spencer McIntyre
jvazquez-r7
Matt Buck
Chris Doughty
David Maloney
OJ
James Lee
Michael Messner
scriptjunkie
Tim Wright
joev
sinn3r
Meatballs
Brandon Turner
William Vu
Christian Mehlmauer
Tom Sellers