MongoDB Detection (MongoDB Wire Protocol)

# SPDX-FileCopyrightText: 2010 Greenbone AG
# 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-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.100747");
  script_version("2026-01-09T05:47:51+0000");
  script_tag(name:"last_modification", value:"2026-01-09 05:47:51 +0000 (Fri, 09 Jan 2026)");
  script_tag(name:"creation_date", value:"2010-08-06 15:09:20 +0200 (Fri, 06 Aug 2010)");
  script_tag(name:"cvss_base", value:"0.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:N");

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

  script_name("MongoDB Detection (MongoDB Wire Protocol)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2010 Greenbone AG");
  script_family("Product detection");
  script_dependencies("find_service.nasl");
  script_require_ports("Services/www", "Services/mongodb", "Services/unknown", 27017);

  script_tag(name:"summary", value:"MongoDB Wire Protocol based detection of MongoDB.");

  script_xref(name:"URL", value:"https://www.mongodb.com/");

  exit(0);
}

include("cpe.inc");
include("dump.inc");
include("host_details.inc");
include("http_func.inc");
include("misc_func.inc");
include("port_service_func.inc");
include("list_array_func.inc");

ports = make_list();
unkwn_ports = unknownservice_get_ports( default_port_list:make_list( 27017 ) );
if( unkwn_ports )
  ports = make_list( ports, unkwn_ports );

# nb: Some MongoDB services seems to answer with a:
#
# HTTP/1.0 200 OK
# *snip*
# "It looks like you are trying to access MongoDB over HTTP on the native driver port."
#
# which will be detected by find_service.nasl as "Services/www". To catch such services
# on non-default ports we need to iterate over these services as well.
http_ports = http_get_ports( default_port_list:make_list( 27017 ) );
if( http_ports ) {

  foreach http_port( http_ports ) {
    banners = get_kb_list( "FindService/tcp/" + http_port + "/get_http" );
    if( ! banners )
      continue;

    foreach banner( banners ) {
      if( ! banner || banner !~ "It looks like you are trying to access MongoDB over HTTP on the native driver port" )
        continue;

      ports = make_list( ports, http_ports );
    }
  }
}

# Starting with GVM 20.04 the services detected as HTTP above are detected as MongoDB correctly.
# TODO: Once all GVM versions < 20.04 are EOL we can remove the HTTP code above.
mongo_ports = service_get_ports( default_port_list:make_list( 27017 ), proto:"mongodb" );
if( mongo_ports )
  ports = make_list( ports, mongo_ports );

ports = make_list_unique( ports );

req1 = raw_string(
  0x3c, 0x00, 0x00, 0x00,                # Message Length: 60
  0xff, 0x0d, 0xc2, 0xc0,                # Request ID
  0xff, 0xff, 0xff, 0xff,                # Response To
  0xd4, 0x07, 0x00, 0x00,                # OpCode: Query
  0x00, 0x00, 0x00, 0x00,                # Query Flags
  "admin",                               # Database Name
  0x2e,
  "$cmd",                                # Collection Name
  0x00,
  0x00, 0x00, 0x00, 0x00,                # Number to Skip: 0
  0x01, 0x00, 0x00, 0x00,                # Number to Return: 1
  # Query
  0x15, 0x00, 0x00, 0x00,                # Document length: 21
  0x10,                                  # Type: Int32
  "whatsmyuri",                          # Element
  0x00,
  0x01, 0x00, 0x00, 0x00,                # Value: 1
  0x00);

req2 = raw_string(
  0x3f, 0x00, 0x00, 0x00,                # Message Length: 63
  0x00, 0x0e, 0xc2, 0xc0,                # Request ID
  0xff, 0xff, 0xff, 0xff,                # Response To
  0xd4, 0x07, 0x00, 0x00,                # OpCode: Query
  0x00, 0x00, 0x00, 0x00,                # Query Flags
  "admin",                               # Database Name
  0x2e,
  "$cmd",                                # Collection Name
  0x00,
  0x00, 0x00, 0x00, 0x00,                # Number to Skip: 0
  0xff, 0xff, 0xff, 0xff,                # Number to Return: -1
  # Query
  0x18, 0x00, 0x00, 0x00,                # Document Length: 24
  0x01,                                  # Type: Double
  "buildinfo",                           # Element
  0x00,
  0x00, 0x00, 0x00, 0x00,                # Value: 1
  0x00, 0x00, 0xf0, 0x3f,
  0x00);

foreach port( ports ) {

  soc = open_sock_tcp( port );
  if( ! soc )
    continue;

  send( socket:soc, data:req1 );
  buf = recv( socket:soc, length:1024 );

  if( ! buf || ( "you" >!< buf && "OP_QUERY" >!< buf ) || "ok" >!< buf || "ff0dc2c0" >!< hexstr( buf ) ) { # ff0dc2c0 == response to above request id
    close( soc );
    continue;
  }

  version = "unknown";
  location = "/";

  service_register( port:port, proto:"mongodb" );

  send( socket:soc, data:req2 );
  buf = recv( socket:soc, length:1024 );
  close( soc );

  if( buf ) {
    txt = bin2string( ddata:buf );
    vers = eregmatch( pattern:"version([0-9.]+)(-)?(rc([0-9]))?", string:txt );
    if( vers[3] && vers[1] ) {
      version = vers[1] + "-" + vers[3];
    } else if( vers[1] && ! ( vers[3] ) ) {
      version = vers[1];
    }
  }

  set_kb_item( name:"mongodb/detected", value:TRUE );
  set_kb_item( name:"mongodb/wire_protocol/detected", value:TRUE );

  cpe = build_cpe( value:version, exp:"^([0-9.]+-?[a-zA-Z0-9]+?)", base:"cpe:/a:mongodb:mongodb:" );
  if( ! cpe )
    cpe = "cpe:/a:mongodb:mongodb";

  register_product( cpe:cpe, location:location, port:port, service:"mongodb" );

  log_message( data:build_detection_report( app:"MongoDB", version:version, install:location, cpe:cpe,
                                            concluded:vers[0] ),
               port:port );
}

exit( 0 );