Schneider Electric Modicon Improper Check for Unusual or Exceptional Conditions (CVE-2020-7539)

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

include('compat.inc');

if (description)
{
  script_id(501217);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/11");

  script_cve_id("CVE-2020-7539");

  script_name(english:"Schneider Electric Modicon Improper Check for Unusual or Exceptional Conditions (CVE-2020-7539)");

  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 the Web Server on Modicon M340, Legacy Offers
Modicon Quantum and Modicon Premium and associated Communication
Modules (see security notification for affected versions), that could
cause a denial of service vulnerability when a specially crafted
packet is sent to the controller over HTTP.

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-2020-343-03/");
  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:P");
  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-2020-7539");

  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:140cpu65150_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140noc77101_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140noc78000_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140noc78100_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140noe77111_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxnoc0401_firmware");
  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: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:tsxety4103_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxety5103_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp574634_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp575634_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp576634_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) 2023-2024 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" : "3.3", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnoe0110_firmware" :
        {"versionEndExcluding" : "6.5", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnoc0401_firmware" :
        {"versionEndExcluding" : "2.10", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:tsxp574634_firmware" :
        {"versionEndExcluding" : "6.1", "family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp575634_firmware" :
        {"versionEndExcluding" : "6.1", "family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp576634_firmware" :
        {"versionEndExcluding" : "6.1", "family" : "Premium"},
    "cpe:/o:schneider-electric:tsxety4103_firmware" :
        {"versionEndExcluding" : "6.2", "family" : "PremiumCP"},
    "cpe:/o:schneider-electric:tsxety5103_firmware" :
        {"versionEndExcluding" : "6.4", "family" : "PremiumCP"},
    "cpe:/o:schneider-electric:140cpu65150_firmware" :
        {"versionEndExcluding" : "6.1", "family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140noe77111_firmware" :
        {"versionEndExcluding" : "7.1", "family" : "QuantumUnityCP"},
    "cpe:/o:schneider-electric:140noc78100_firmware" :
        {"versionEndExcluding" : "1.74", "family" : "QuantumUnityCP"},
    "cpe:/o:schneider-electric:140noc78000_firmware" :
        {"versionEndExcluding" : "1.74", "family" : "QuantumUnityCP"},
    "cpe:/o:schneider-electric:140noc77101_firmware" :
        {"versionEndExcluding" : "1.08", "family" : "QuantumUnityCP"}
};

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