module
MS17-010 EternalBlue SMB Remote Windows Kernel Pool Corruption
| Disclosed | Created |
|---|---|
| 03/14/2017 | 05/30/2018 |
Disclosed
03/14/2017
Created
05/30/2018
Description
This module is a port of the Equation Group ETERNALBLUE exploit, part of
the FuzzBunch toolkit released by Shadow Brokers.
There is a buffer overflow memmove operation in Srv!SrvOs2FeaToNt. The size
is calculated in Srv!SrvOs2FeaListSizeToNt, with mathematical error where a
DWORD is subtracted into a WORD. The kernel pool is groomed so that overflow
is well laid-out to overwrite an SMBv1 buffer. Actual RIP hijack is later
completed in srvnet!SrvNetWskReceiveComplete.
This exploit, like the original may not trigger 100% of the time, and should be
run continuously until triggered. It seems like the pool will get hot streaks
and need a cool down period before the shells rain in again.
The module will attempt to use Anonymous login, by default, to authenticate to perform the
exploit. If the user supplies credentials in the SMBUser, SMBPass, and SMBDomain options it will use
those instead.
On some systems, this module may cause system instability and crashes, such as a BSOD or
a reboot. This may be more likely with some payloads.
the FuzzBunch toolkit released by Shadow Brokers.
There is a buffer overflow memmove operation in Srv!SrvOs2FeaToNt. The size
is calculated in Srv!SrvOs2FeaListSizeToNt, with mathematical error where a
DWORD is subtracted into a WORD. The kernel pool is groomed so that overflow
is well laid-out to overwrite an SMBv1 buffer. Actual RIP hijack is later
completed in srvnet!SrvNetWskReceiveComplete.
This exploit, like the original may not trigger 100% of the time, and should be
run continuously until triggered. It seems like the pool will get hot streaks
and need a cool down period before the shells rain in again.
The module will attempt to use Anonymous login, by default, to authenticate to perform the
exploit. If the user supplies credentials in the SMBUser, SMBPass, and SMBDomain options it will use
those instead.
On some systems, this module may cause system instability and crashes, such as a BSOD or
a reboot. This may be more likely with some payloads.
Authors
Equation GroupShadow BrokerssleepyaSean Dillon Dylan Davis thelightcosinewvu agalway-r7cdelafuente-r7cdelafuente-r7agalway-r7
Platform
Windows
Architectures
x64
References
Module Options
To display the available options, load the module within the Metasploit console and run the commands ‘show options’ or ‘show advanced’:
msf > use exploit/windows/smb/ms17_010_eternalblue
msf /(e) > show actions
...actions...
msf /(e) > set ACTION < action-name >
msf /(e) > show options
...show and set options...
msf /(e) > run
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