Siemens SCALANCE M875 Arbitrary File Read and Write (CVE-2018-4861)

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

include('compat.inc');

if (description)
{
  script_id(501003);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/24");

  script_cve_id("CVE-2018-4861");

  script_name(english:"Siemens SCALANCE M875 Arbitrary File Read and Write (CVE-2018-4861)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A vulnerability has been identified in SCALANCE M875 (All versions).
An authenticated remote attacker with access to the web interface
(443/tcp), could potentially read and download arbitrary files from
the device's file system. Successful exploitation requires that the
attacker has network access to the web interface. The attacker must be
authenticated as administrative user to exploit the security
vulnerability. At the time of advisory publication no public
exploitation of this security vulnerability was known.

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://cert-portal.siemens.com/productcert/pdf/ssa-977428.pdf");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:N/AC:L/PR:H/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-2018-4861");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(200);

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/06/26");
  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_m875_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/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_m875_firmware" :
        {"family" : "SCALANCEM"}
};

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