Siemens SCALANCE W1750D Improper Input Validation (CVE-2021-25145)

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

include('compat.inc');

if (description)
{
  script_id(500990);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/24");

  script_cve_id("CVE-2021-25145");

  script_name(english:"Siemens SCALANCE W1750D Improper Input Validation (CVE-2021-25145)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A remote unauthorized disclosure of information vulnerability was
discovered in some Aruba Instant Access Point (IAP) products in
version(s): Aruba Instant 6.4.x: 6.4.4.8-4.2.4.18 and below; Aruba
Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and
below; Aruba Instant 8.5.x: 8.5.0.10 and below; Aruba Instant 8.6.x:
8.6.0.5 and below; Aruba Instant 8.7.x: 8.7.0.0 and below. Aruba has
released patches for Aruba Instant that address this security
vulnerability.

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.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txt");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-21-131-14");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/pdf/ssa-723417.pdf");
  script_set_attribute(attribute:"solution", value:
"The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original
can be found at CISA.gov.

Siemens recommends upgrading SCALANCE W1750D to v8.7.1.3 or later

Siemens has identified the following specific workarounds and mitigations for users to apply to reduce the risk:

- Block access to the Aruba Instant device IP address on Port 8211/UDP from all untrusted users.
- Block access to the Aruba Instant Command Line Interface from all untrusted users.
- Block access to the Aruba Instant Web Management Interface from all untrusted users.

As a general security measure, Siemens strongly recommends protecting network access to devices with appropriate
mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends configuring the
environment according to Siemens’ operational guidelines for industrial security and following the recommendations in
the product manuals.

For additional information see Siemens Security Advisory SSA-723417");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/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-2021-25145");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/03/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/03/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/04/11");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_w1750d_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) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Siemens');

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

var vuln_cpes = {
    "cpe:/o:siemens:scalance_w1750d_firmware" :
        {"versionEndExcluding" : "8.7.1.3", "family" : "SCALANCEW"}
};

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