Schneider Electric Modicon Use of Hard-coded Credentials (CVE-2019-6859)

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

include('compat.inc');

if (description)
{
  script_id(501208);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/22");

  script_cve_id("CVE-2019-6859");

  script_name(english:"Schneider Electric Modicon Use of Hard-coded Credentials (CVE-2019-6859)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A CWE-798: Use of Hardcoded Credentials vulnerability exists in
Modicon Controllers (All versions of the following CPUs and
Communication Module product references listed in the Security
Notifications), which could cause the disclosure of FTP hardcoded
credentials when using the Web server of the controller on an unsecure
network.

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.se.com/ww/en/download/document/SEVD-2019-316-02");
  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: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: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-2019-6859");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(798);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/06/29");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmx_noc_0401_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmx_noe_0100_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmx_noe_0110_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmx_p34x_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/Schneider");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Schneider');

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

var vuln_cpes = {
    "cpe:/o:schneider-electric:bmx_p34x_firmware" :
        {"family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmx_noe_0100_firmware" :
        {"family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmx_noe_0110_firmware" :
        {"family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmx_noc_0401_firmware" :
        {"family" : "ModiconM340M580CP"}
};

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