Schneider Electric Modicon Missing Authentication for Critical Function (CVE-2020-7540)

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

include('compat.inc');

if (description)
{
  script_id(501206);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/22");

  script_cve_id("CVE-2020-7540");

  script_name(english:"Schneider Electric Modicon Missing Authentication for Critical Function (CVE-2020-7540)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A CWE-306: Missing Authentication for Critical Function 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
unauthenticated command execution in the controller when sending
special HTTP requests.

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-2020-343-04/");
  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:P/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:H/I:H/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-2020-7540");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(306);

  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:140cpu65160_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:140noe77101_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:bmxnor200h_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 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:140noe77101_firmware" :
        {"versionEndExcluding" : "7.1", "family" : "QuantumUnityCP"},
    "cpe:/o:schneider-electric:140noe77111_firmware" :
        {"versionEndExcluding" : "7.1", "family" : "QuantumUnityCP"},
    "cpe:/o:schneider-electric:140cpu65150_firmware" :
        {"versionEndExcluding" : "6.1", "family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu65160_firmware" :
        {"versionEndExcluding" : "6.1", "family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140noc78000_firmware" :
        {"versionEndExcluding" : "1.74", "family" : "QuantumUnityCP"},
    "cpe:/o:schneider-electric:140noc78100_firmware" :
        {"versionEndExcluding" : "1.74", "family" : "QuantumUnityCP"},
    "cpe:/o:schneider-electric:140noc77101_firmware" :
        {"versionEndExcluding" : "1.08", "family" : "QuantumUnityCP"},
    "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:bmxnoc0401_firmware" :
        {"versionEndExcluding" : "2.10", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnor200h_firmware" :
        {"versionEndExcluding" : "1.70", "family" : "ModiconM340M580CP"}
};

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