Categories: auth, intrusive
Attempts to authenticate to Microsoft SQL Servers using an empty password for the sysadmin (sa) account.
SQL Server credentials required: No (will not benefit from
- Host script: Will run if the
mssql.instance-portscript arguments are used (see mssql.lua).
- Port script: Will run against any services identified as SQL Servers, but only
mssql.instance-portscript arguments are NOT used.
WARNING: SQL Server 2005 and later versions include support for account lockout policies (which are enforced on a per-user basis).
NOTE: Communication with instances via named pipes depends on the
library. To communicate with (and possibly to discover) instances via named pipes,
the host must have at least one SMB port (e.g. TCP 445) that was scanned and
found to be open. Additionally, named pipe connections may require Windows
authentication to connect to the Windows host (via SMB) in addition to the
authentication required to connect to the SQL Server instances itself. See the
documentation and arguments for the
smb library for more information.
NOTE: By default, the ms-sql-* scripts may attempt to connect to and communicate
with ports that were not included in the port list for the Nmap scan. This can
be disabled using the
mssql.scanned-ports-only script argument.
mssql.domain, mssql.instance-all, mssql.instance-name, mssql.instance-port, mssql.password, mssql.protocol, mssql.scanned-ports-only, mssql.timeout, mssql.usernameSee the documentation for the mssql library.
randomseed, smbbasic, smbport, smbsignSee the documentation for the smb library.
smbdomain, smbhash, smbnoguest, smbpassword, smbtype, smbusernameSee the documentation for the smbauth library.
nmap -p 445 --script ms-sql-empty-password --script-args mssql.instance-all <host> nmap -p 1433 --script ms-sql-empty-password <host>
| ms-sql-empty-password: | [192.168.100.128\PROD] |_ sa:<empty> => Login Success
Author: Patrik Karlsson
License: Same as Nmap--See https://nmap.org/book/man-legal.html