Operating System (OS) Detection (RTSP)

# Copyright (C) 2018 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.108451");
  script_version("2021-05-20T09:32:28+0000");
  script_tag(name:"last_modification", value:"2021-05-20 09:32:28 +0000 (Thu, 20 May 2021)");
  script_tag(name:"creation_date", value:"2018-07-23 10:06:14 +0200 (Mon, 23 Jul 2018)");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:N");
  script_tag(name:"cvss_base", value:"0.0");
  script_name("Operating System (OS) Detection (RTSP)");
  script_category(ACT_GATHER_INFO);
  script_family("Product detection");
  script_copyright("Copyright (C) 2018 Greenbone Networks GmbH");
  script_dependencies("rtsp_detect.nasl");
  script_mandatory_keys("RTSP/server_or_auth_banner/available");

  script_tag(name:"summary", value:"RTSP server based Operating System (OS) detection.");

  script_tag(name:"qod_type", value:"remote_banner");

  exit(0);
}

include("host_details.inc");
include("os_func.inc");
include("port_service_func.inc");

SCRIPT_DESC = "Operating System (OS) Detection (RTSP)";
BANNER_TYPE = "RTSP Server banner";

port = service_get_port( default:554, proto:"rtsp" );

if( server_banner = get_kb_item( "RTSP/" + port + "/server_banner" ) ) {

  # Server: IQinVision Embedded 1.0
  if( "IQinVision Embedded" >< server_banner ) {
    os_register_and_report( os:"Linux/Unix (Embedded)", cpe:"cpe:/o:linux:kernel", banner_type:BANNER_TYPE, port:port, banner:server_banner, desc:SCRIPT_DESC, runs_key:"unixoide" );
    exit( 0 );
  }

  # Server: GStreamer RTSP server
  # Cross-Platform
  if( server_banner !~ "^Server\s*:\s*GStreamer RTSP server$" )
    unknown_banner = server_banner;
}

if( auth_banner = get_kb_item( "RTSP/" + port + "/auth_banner" ) ) {

  auth_banner_lo = tolower( auth_banner );

  # WWW-Authenticate: Basic realm="DahuaRtsp"
  # nb: Having Server: Rtsp Server/2.0 as its banner
  if( 'basic realm="dahuartsp"' >< auth_banner_lo ) {
    os_register_and_report( os:"Linux/Unix (Embedded)", cpe:"cpe:/o:linux:kernel", banner_type:BANNER_TYPE, port:port, banner:auth_banner, desc:SCRIPT_DESC, runs_key:"unixoide" );
    exit( 0 );
  }

  if( unknown_banner )
    unknown_banner += '\n';
  unknown_banner += auth_banner;
}

if( unknown_banner )
  os_register_unknown_banner( banner:unknown_banner, banner_type_name:BANNER_TYPE, banner_type_short:"rtsp_banner", port:port );

exit( 0 );