Qnap QTS NULL Pointer Dereference (CVE-2018-14747)

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

include('compat.inc');

if (description)
{
  script_id(502568);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/10/17");

  script_cve_id("CVE-2018-14747");

  script_name(english:"Qnap QTS NULL Pointer Dereference (CVE-2018-14747)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"NULL Pointer Dereference vulnerability in QTS 4.3.5 build 20181013,
QTS 4.3.4 build 20181008, QTS 4.3.3 build 20180829, QTS 4.2.6 build
20180829 and earlier versions could allow remote attackers to crash
the NAS media server.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  script_set_attribute(attribute:"see_also", value:"https://www.qnap.com/zh-tw/security-advisory/nas-201811-22");
  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: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-2018-14747");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(476);

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/11/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/10/16");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:qnap:qts:4.3.5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:qnap:qts:4.3.4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:qnap:qts:4.3.3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:qnap:qts:4.2.6");
  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) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Qnap');

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

var vuln_cpes = {
    "cpe:/o:qnap:qts:4.3.5" :
        {"versionStartIncluding" : "4.3.5", "versionEndIncluding" : "4.3.5", "family" : "QTS"},
    "cpe:/o:qnap:qts:4.3.4" :
        {"versionStartIncluding" : "4.3.4", "versionEndIncluding" : "4.3.4", "family" : "QTS"},
    "cpe:/o:qnap:qts:4.3.3" :
        {"versionStartIncluding" : "4.3.3", "versionEndIncluding" : "4.3.3", "family" : "QTS"},
    "cpe:/o:qnap:qts:4.2.6" :
        {"versionStartIncluding" : "4.2.6", "versionEndIncluding" : "4.2.6", "family" : "QTS"}
};

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