Schneider Electric Modicon Improper Check for Unusual or Exceptional Conditions (CVE-2020-7536)

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

include('compat.inc');

if (description)
{
  script_id(501207);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/22");

  script_cve_id("CVE-2020-7536");

  script_name(english:"Schneider Electric Modicon Improper Check for Unusual or Exceptional Conditions (CVE-2020-7536)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A CWE-754:Improper Check for Unusual or Exceptional Conditions
vulnerability exists in Modicon M340 CPUs (BMXP34* versions prior to
V3.30) Modicon M340 Communication Ethernet modules (BMXNOE0100 (H)
versions prior to V3.4 BMXNOE0110 (H) versions prior to V6.6
BMXNOR0200H all versions), that could cause the device to be
unreachable when modifying network parameters over SNMP.

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://security.cse.iitk.ac.in/responsible-disclosure");
  script_set_attribute(attribute:"see_also", value:"https://www.se.com/ww/en/download/document/SEVD-2020-343-07/");
  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:C");
  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-2020-7536");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(754);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/12/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/12/11");
  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:bmxnoe0100_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxnoe0110_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxnor0200h_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp341000_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp342000_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp3420102_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp3420102cl_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp342020_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp3420302_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp3420302cl_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxnoc0401_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/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:bmxp341000_firmware" :
        {"versionEndExcluding" : "3.30", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp342000_firmware" :
        {"versionEndExcluding" : "3.30", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420102_firmware" :
        {"versionEndExcluding" : "3.30", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420102cl_firmware" :
        {"versionEndExcluding" : "3.30", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp342020_firmware" :
        {"versionEndExcluding" : "3.30", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420302_firmware" :
        {"versionEndExcluding" : "3.30", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420302cl_firmware" :
        {"versionEndExcluding" : "3.30", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxnoe0100_firmware" :
        {"versionEndExcluding" : "3.4", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnoe0110_firmware" :
        {"versionEndExcluding" : "6.6", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnor0200h_firmware" :
        {"versionEndExcluding" : "1.7", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnoc0401_firmware" :
        {"versionEndExcluding" : "2.11", "family" : "ModiconM340M580CP"}
};

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