module
Microsoft SQL Server NTLM Stealer
| Disclosed | Created |
|---|---|
| 01/01/1970 | 05/30/2018 |
Disclosed
01/01/1970
Created
05/30/2018
Description
This module can be used to help capture or relay the LM/NTLM credentials of the
account running the remote SQL Server service. The module will use the supplied
credentials to connect to the target SQL Server instance and execute the native
"xp_dirtree" or "xp_fileexist" stored procedure. The stored procedures will then
force the service account to authenticate to the system defined in the SMBProxy
option. In order for the attack to be successful, the SMB capture or relay module
must be running on the system defined as the SMBProxy. The database account used
to connect to the database should only require the "PUBLIC" role to execute.
Successful execution of this attack usually results in local administrative access
to the Windows system. Specifically, this works great for relaying credentials
between two SQL Servers using a shared service account to get shells. However, if
the relay fails, then the LM hash can be reversed using the Halflm rainbow tables
and john the ripper. Thanks to "Sh2kerr" who wrote the ora_ntlm_stealer for the
inspiration.
account running the remote SQL Server service. The module will use the supplied
credentials to connect to the target SQL Server instance and execute the native
"xp_dirtree" or "xp_fileexist" stored procedure. The stored procedures will then
force the service account to authenticate to the system defined in the SMBProxy
option. In order for the attack to be successful, the SMB capture or relay module
must be running on the system defined as the SMBProxy. The database account used
to connect to the database should only require the "PUBLIC" role to execute.
Successful execution of this attack usually results in local administrative access
to the Windows system. Specifically, this works great for relaying credentials
between two SQL Servers using a shared service account to get shells. However, if
the relay fails, then the LM hash can be reversed using the Halflm rainbow tables
and john the ripper. Thanks to "Sh2kerr" who wrote the ora_ntlm_stealer for the
inspiration.
Author
nullbind
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 auxiliary/admin/mssql/mssql_ntlm_stealer
msf /(r) > show actions
...actions...
msf /(r) > set ACTION < action-name >
msf /(r) > show options
...show and set options...
msf /(r) > run
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