More predictable than /dev/stdin, which is usually a symlink to
/proc/self/fd/0 or /dev/fd/0, but the feature is not guaranteed to be
present.
This isn't *terribly* useful, but it can be. -x is recommended, but it
doesn't allow for ERB directives. This is mostly for hax.
Rather than assume that the destination argument is a directory, check
first, and then do the same thing that 'cp' would do.
- If dest exists and is a directory, copy to the directory.
- If dest exists and is a file, copy over the file.
- If dest does not exist and is a directory, fail.
- If dest does not exist and is a file, create the file.
When something fails, the target is given a hardcoded 404 message
generated by the framework. But the user (attacker) now can configure
this. When the Custom404 option is set, the mixin will actually
redirect (302) to that URL.
There are several scenarios that can trigger a 404 by BES (custom or
default):
* When the browser doesn't allow javascript
* When the browser directly visits the exploit URL, which is forbidden.
If this actually happens, it probably means the attacker gave the
wrong URL.
* The attacker doesn't allow the browser auto-recovery to retry the
URL.
* If some browser requirements aren't met.
* The browser attempts to go to access a resource not set up by the
mixin.
Sometimes we forget the set command is context specific. For example,
if run from a module's context, it will set the value in the module's
datastore.
Fix#4641
Modify rename_file to fit the pattern of the other file methods.
Otherwise, calling this yields a backtrace in the logs and it fails.
Steps to verify:
rc script:
```
loadpath test/modules
use exploit/multi/handler
set lhost 172.28.128.1
set lport 8081
set payload windows/meterpreter/reverse_http
run -j
sleep 5
resource test/scripts/test-sessions.rc
Before:
```
[-] FAILED: should move files
[-] Exception: TypeError : true is not a symbol
log file:
[01/27/2015 13:17:23] [d(0)] core: Call stack:
/home/bcook/projects/metasploit-framework/lib/msf/core/post/file.rb:357:in
`rename_file'
/home/bcook/projects/metasploit-framework/test/modules/post/test/file.rb:115:in
`block in test_file'
/home/bcook/projects/metasploit-framework/test/lib/module_test.rb:26:in
`call'
/home/bcook/projects/metasploit-framework/test/lib/module_test.rb:26:in
`it'
...
```
After, passing sessions instead:
```
post/test/file
SESSION => 1
Setup: changing working directory to %TEMP%
[*] Running against session 1
[*] Session type is meterpreter and platform is x86/win32
[+] should test for file existence
[+] should test for directory existence
[+] should create text files
[+] should read the text we just wrote
[+] should append text files
[+] should delete text files
[+] should move files
[+] should write binary data
[+] should read the binary data we just wrote
[+] should delete binary files
[+] should append binary data
[*] Passed: 11; Failed: 0
```
This should fix up #4642 with respect to #4504.
Squashed commit of the following:
commit 124d53ccb00cd200bede092e893dda7e033d3e17
Merge: cb2bef8 ccad159
Author: Tod Beardsley <tod_beardsley@rapid7.com>
Date: Mon Jan 26 16:23:03 2015 -0600
Merge branch 'feature/creds-blank-finders' into temp
commit ccad159222eaa949d76e22b588d1ac7709fb2f27
Author: Tod Beardsley <tod_beardsley@rapid7.com>
Date: Mon Jan 26 15:58:02 2015 -0600
Clean out whitespace, make vars more meaningful
commit 266b45dff26e2778e43d8e4750d212b5aee5a009
Author: Tod Beardsley <tod_beardsley@rapid7.com>
Date: Mon Jan 26 15:54:32 2015 -0600
Add some specs for regular users and blank users
commit 2e51503f76e9a2f6921c57e86a2f98527f80c874
Author: Tod Beardsley <tod_beardsley@rapid7.com>
Date: Mon Jan 26 15:04:03 2015 -0600
Users should be able to find blank user/pass
In #4475, I incorrectly interpreted the role of the 'incomplete' array
in monitor_socket, and that change should be reverted.
What appears to happen is, we play a kind of 3-card monty with the list
of received packets that are waiting for a handler to use them.
monitor_socket continually loops between putting the packets on @pqueue,
then into backlog[] to sort them, then into incomplete[] to list all of
the packets that did not have handlers, finally back into @pqueue again.
If packets don't continually get shuffled back into incomplete, they are
not copied back into @pqueue to get rescanned again.
The only reason anything should really get into incomplete[] is if we
receive a packet, but there is nothing to handle it. This scenario
sounds like a bug, but it is exactly what happens with the Tcp Client
channel - one can open a new channel, and receive a response packet back
from the channel before the subsequent read_once code runs to register a
handler to actually process it. This would be akin to your OS
speculatively accepting data on a TCP socket with no listener, then when
you open the socket for the first time, its already there.
While it would be nice if the handlers were setup before the data was
sent back, rather than relying on a handler being registered some time
between connect and PacketTimeout, this needs to get in now to stop the
bleeding. The original meterpreter crash issue from #4475 appears to be
gone as well.
This patch fixes a problem with OptRegexp. The OptRegexp class is
always forcing the value to be converted to a string first, which
causes the EXCLUDE option in browser_autopwn to kick in and match
every found autopwn module, so it ignores all of them and you load
nothing (#4616).
It is important to understand that nil actually represents an option
not being set, which is a completely different behavior than having
an empty value (technically "" is still a value, and if there's a
value, it means the option is set). We need to watcher for these
scenarios.
I am restoring the #default method to avoid forcing a to_s, which should
fix the browser autopwn loading problem. And then I changed scraper.rb's
default value for datastore option PATTERN to a string, because still
fixes#3798. The way I see it, #3798 is actually a module-specific issue.
Fix#4616Fix#3798
root
sinn3r
root
Brent Cook
William Vu
jvazquez-r7
Christian Mehlmauer
Meatballs
James Lee
Brent Cook
Tod Beardsley
Jon Hart
Spencer McIntyre