Schneider Electric Modicon M340 PLC Uncontrolled Resource Consumption (CVE-2017-6017)

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

include('compat.inc');

if (description)
{
  script_id(501204);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/04");

  script_cve_id("CVE-2017-6017");

  script_name(english:"Schneider Electric Modicon M340 PLC Uncontrolled Resource Consumption (CVE-2017-6017)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A Resource Exhaustion issue was discovered in Schneider Electric
Modicon M340 PLC BMXNOC0401, BMXNOE0100, BMXNOE0110, BMXNOE0110H,
BMXNOR0200H, BMXP341000, BMXP342000, BMXP3420102, BMXP3420102CL,
BMXP342020, BMXP342020H, BMXP342030, BMXP3420302, BMXP3420302H, and
BMXP342030H. A remote attacker could send a specially crafted set of
packets to the PLC causing it to freeze, requiring the operator to
physically press the reset button on the PLC in order to recover.

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:"http://www.securityfocus.com/bid/96414");
  script_set_attribute(attribute:"see_also", value:"https://ics-cert.us-cert.gov/advisories/ICSA-17-054-03");
  # https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2017-048-02
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8e3e8ebf");
  script_set_attribute(attribute:"solution", value:
"The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original
can be found at CISA.gov.

Schneider Electric has released fixes for the vulnerability that can be downloaded from:

- M340: https://www.schneider-electric.fr/fr/search/V2.9?filters=CAT_PRD_DOC_FIRMUPD
- M580: https://www.schneider-electric.us/en/product-range/62098-modicon-m580-paccontroller/
- Quantum: https://www.schneider-electric.com/en/download/document/OFS_3_50_2905/

Schneider Electric recommends the following workarounds and mitigations for Premium and M1E devices:

- Set up a firewall blocking all remote/external access to Port 502

For more information Schneider Electric has released a security notification that can be found at:
https://www.schneider-electric.com/en/download/document/SEVD-2017-048-02/");
  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-2017-6017");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(400);

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/06/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/06/30");
  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:bmxnoc0401_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxnoe0100_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxnoe0110_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxnoe0110h_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxnor0200h_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp341000_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp342000_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp3420102_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp3420102cl_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp342020_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp342020h_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp3420302_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp3420302h_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp342030_firmware:2.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxp342030h_firmware:2.8");
  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:bmxnoc0401_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnoe0100_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnoe0110_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnoe0110h_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnor0200h_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxp341000_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp342000_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420102_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420102cl_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp342020_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp342020h_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp342030_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420302_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420302h_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp342030h_firmware:2.8" :
        {"versionEndIncluding" : "2.8", "versionStartIncluding" : "2.8", "family" : "ModiconM340"}
};

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