Wago PFC200 Authentication Bypass (CVE-2016-9362)

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

include('compat.inc');

if (description)
{
  script_id(500924);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/24");

  script_cve_id("CVE-2016-9362");

  script_name(english:"Wago PFC200 Authentication Bypass (CVE-2016-9362)");

  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 in WAGO 750-8202/PFC200 prior to FW04
(released August 2015), WAGO 750-881 prior to FW09 (released August
2016), and WAGO 0758-0874-0000-0111. By accessing a specific uniform
resource locator (URL) on the web server, a malicious user is able to
edit and to view settings without authenticating.

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:"http://www.securityfocus.com/bid/95074");
  script_set_attribute(attribute:"see_also", value:"https://ics-cert.us-cert.gov/advisories/ICSA-16-357-02");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
  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:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-9362");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(287);

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/02/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/03/29");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:wago:pfc200_firmware:-");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Wago');

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

var vuln_cpes = {
    "cpe:/o:wago:pfc200_firmware" :
        {"versionEndExcluding" : "fw04", "family" : "ControllerPFC200"},
    "cpe:/o:wago:750-881_firmware" :
        {"versionEndExcluding" : "fw09", "family" : "Controller750"}
};

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