Barco ClickShare Devices Improper Input Validation (CVE-2018-10943)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(503359);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/10/09");

  script_cve_id("CVE-2018-10943");

  script_name(english:"Barco ClickShare Devices Improper Input Validation (CVE-2018-10943)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"An issue was discovered on Barco ClickShare CSE-200 and CS-100 Base
Units with firmware before 1.6.0.3. Sending an arbitrary unexpected
string to TCP port 7100 respecting a certain frequency timing
disconnects all clients and results in a crash of the Unit.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # https://www.barco.com/en/support/software/R33050069?majorVersion=01&minorVersion=06&patchVersion=00&buildVersion=003
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a40a6df0");
  # https://www.barco.com/en/support/software/R33050070?majorVersion=01&minorVersion=06&patchVersion=00&buildVersion=003
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6db7349b");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-10943");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(20);

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/07/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/07/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/09");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:barco:clickshare_cs-100_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:barco:clickshare_cse-200_firmware");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/Barco");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Barco');

var asset = tenable_ot::assets::get(vendor:'Barco');

var vuln_cpes = {
    "cpe:/o:barco:clickshare_cse-200_firmware" :
        {"versionEndExcluding" : "1.6.0.3", "family" : "ClickShare"},
    "cpe:/o:barco:clickshare_cs-100_firmware" :
        {"versionEndExcluding" : "1.6.0.3", "family" : "ClickShare"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_HOLE);