Nmap NSE net: ms-sql-xp-cmdshell

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_nmap_ms_sql_xp_cmdshell_net.nasl 5499 2017-03-06 13:06:09Z teissa $
#
# Autogenerated NSE wrapper
#
# Authors:
# NSE-Script: Patrik Karlsson
# NASL-Wrapper: autogenerated
#
# Copyright:
# NSE-Script: The Nmap Security Scanner (http://nmap.org)
# Copyright (C) 2011 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

tag_summary = "Attempts to run a command using the command shell of Microsoft SQL Server (ms-sql).

The script needs an account with the sysadmin server role to work. It needs to be fed credentials
through the script arguments or from the scripts 'ms-sql-brute' or 'ms-sql-empty-
password'.

When run, the script iterates over the credentials and attempts to run the command until either all
credentials are exhausted or until the command is executed.


SYNTAX:

mssql-xp-cmdshell.cmd:  specifies the OS command to run.
(default is ipconfig /all)



mssql.timeout:  How long to wait for SQL responses. This is a number
followed by 'ms' for milliseconds, 's' for seconds,
'm' for minutes, or 'h' for hours. Default:
'30s'.


mssql.password:  specifies the password to use to connect to
the server. This option overrides any accounts found by
the 'ms-sql-brute' and 'ms-sql-empty-password' scripts.



mssql.username:  specifies the username to use to connect to
the server. This option overrides any accounts found by
the 'ms-sql-brute' and 'ms-sql-empty-password' scripts.";

if(description)
{
    script_id(104025);
    script_version("$Revision: 5499 $");
    script_tag(name:"last_modification", value:"$Date: 2017-03-06 14:06:09 +0100 (Mon, 06 Mar 2017) $");
    script_tag(name:"creation_date", value:"2011-06-01 16:32:46 +0200 (Wed, 01 Jun 2011)");
    script_tag(name:"cvss_base", value:"5.0");
    script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
    script_name("Nmap NSE net: ms-sql-xp-cmdshell");


    script_category(ACT_INIT);
    script_tag(name:"qod_type", value:"remote_analysis");
    script_copyright("NSE-Script: The Nmap Security Scanner; NASL-Wrapper: Greenbone Networks GmbH");
    script_family("Nmap NSE net");
    script_dependencies("nmap_nse_net.nasl");
    script_mandatory_keys("Tools/Launch/nmap_nse_net");

    script_add_preference(name:"mssql-xp-cmdshell.cmd", value:"", type:"entry");
    script_add_preference(name:"mssql.timeout", value:"", type:"entry");
    script_add_preference(name:"mssql.password", value:"", type:"entry");
    script_add_preference(name:"mssql.username", value:"", type:"entry");

    script_tag(name : "summary" , value : tag_summary);
    exit(0);
}


include("nmap.inc");

# The corresponding NSE script does't belong to the 'safe' category
if (safe_checks()) exit(0);

phase = 0;
if (defined_func("scan_phase")) {
    phase = scan_phase();
}

if (phase == 1) {
    # Get the preferences
    argv = make_array();

    pref = script_get_preference("mssql-xp-cmdshell.cmd");
    if (!isnull(pref) && pref != "") {
        argv["mssql-xp-cmdshell.cmd"] = string('"', pref, '"');
    }
    pref = script_get_preference("mssql.timeout");
    if (!isnull(pref) && pref != "") {
        argv["mssql.timeout"] = string('"', pref, '"');
    }
    pref = script_get_preference("mssql.password");
    if (!isnull(pref) && pref != "") {
        argv["mssql.password"] = string('"', pref, '"');
    }
    pref = script_get_preference("mssql.username");
    if (!isnull(pref) && pref != "") {
        argv["mssql.username"] = string('"', pref, '"');
    }
    nmap_nse_register(script:"ms-sql-xp-cmdshell", args:argv);
} else if (phase == 2) {
    res = nmap_nse_get_results(script:"ms-sql-xp-cmdshell");
    foreach portspec (keys(res)) {
        output_banner = 'Result found by Nmap Security Scanner (ms-sql-xp-cmdshell.nse) http://nmap.org:\n\n';
        if (portspec == "0") {
            security_message(data:output_banner + res[portspec], port:0);
        } else {
            v = split(portspec, sep:"/", keep:0);
            proto = v[0];
            port = v[1];
            security_message(data:output_banner + res[portspec], port:port, protocol:proto);
        }
    }
}