Mobatek MobaXterm < 21.0 (CVE-2021-28847)

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

include('compat.inc');

if (description)
{
  script_id(192154);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/15");

  script_cve_id("CVE-2021-28847");

  script_name(english:"Mobatek MobaXterm < 21.0 (CVE-2021-28847)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of Mobatek MobaXterm installed on the remote host is prior to 21.0. It is, therefore, affected by a
vulnerability as referenced in the CVE-2021-28847 advisory.

  - MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via tab title
    change requests that are sent repeatedly at high speed, which results in many SetWindowTextA or
    SetWindowTextW calls. (CVE-2021-28847)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://www.cvedetails.com/vulnerability-list/vendor_id-15701/product_id-32575/Mobatek-Mobaxterm.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f7905d11");
  script_set_attribute(attribute:"see_also", value:"https://www.cvedetails.com/cve/CVE-2021-28847");
  script_set_attribute(attribute:"solution", value:
"Upgrade Mobatek MobaXterm based upon the guidance specified in the linked advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC: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_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-28847");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/06/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/03/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mobatek:mobaxterm");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("mobatek_mobaxterm_win_installed.nbin");
  script_require_keys("installed_sw/Mobatek MobaXterm");

  exit(0);
}

include('vcf.inc');
get_kb_item_or_exit('SMB/Registry/Enumerated');

var app_info = vcf::get_app_info(app:'Mobatek MobaXterm', win_local:TRUE);

var constraints = [
  { 'fixed_version' : '21.0' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING
);