Schneider Electric Modicon Improper Input Validation (CVE-2021-22787)

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

include('compat.inc');

if (description)
{
  script_id(501220);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/22");

  script_cve_id("CVE-2021-22787");

  script_name(english:"Schneider Electric Modicon Improper Input Validation (CVE-2021-22787)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A CWE-20: Improper Input Validation vulnerability exists that could
cause denial of service of the device when an attacker sends a
specially crafted HTTP request to the web server of the device.
Affected Product: Modicon M340 CPUs: BMXP34 (Versions prior to V3.40),
Modicon M340 X80 Ethernet Communication Modules: BMXNOE0100 (H),
BMXNOE0110 (H), BMXNOC0401, BMXNOR0200H RTU (All Versions), Modicon
Premium Processors with integrated Ethernet (Copro): TSXP574634,
TSXP575634, TSXP576634 (All Versions), Modicon Quantum Processors with
Integrated Ethernet (Copro): 140CPU65xxxxx (All Versions), Modicon
Quantum Communication Modules: 140NOE771x1, 140NOC78x00, 140NOC77101
(All Versions), Modicon Premium Communication Modules: TSXETY4103,
TSXETY5103 (All Versions)

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-257-02
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f6bf47e7");
  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-2021-22787");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(20);

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/02/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/02/11");
  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:140noc78x00_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140noe771x1_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:bmxnor0200h_rtu_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp342020_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:bmxp342020_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxnoe0100_firmware" :
        {"versionEndExcluding" : "3.50", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnoe0110_firmware" :
        {"versionEndExcluding" : "6.7", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnoc0401_firmware" :
        {"versionEndExcluding" : "2.11", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnor0200h_rtu_firmware" :
        {"versionEndExcluding" : "1.7", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:tsxp574634_firmware" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp575634_firmware" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp576634_firmware" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:140cpu65150_firmware" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140noe771x1_firmware" :
        {"family" : "QuantumUnityCP"},
    "cpe:/o:schneider-electric:140noc78x00_firmware" :
        {"family" : "QuantumUnityCP"},
    "cpe:/o:schneider-electric:140noc77101_firmware" :
        {"family" : "QuantumUnityCP"},
    "cpe:/o:schneider-electric:tsxety4103_firmware" :
        {"family" : "PremiumCP"},
    "cpe:/o:schneider-electric:tsxety5103_firmware" :
        {"family" : "PremiumCP"}
};

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