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HistoryJun 29, 2023 - 12:00 a.m.

Schneider Electric Modicon Premium, Modicon Quantum, Modicon M340, and Modicon BMXNOR0200 Use of a Broken or Risky Cryptographic Algorithm (CVE-2018-7242)

2023-06-2900:00:00

www.tenable.com

schneider electric

modicon premium

modicon quantum

modicon m340

modicon bmxnor0200

cryptographic algorithm

vulnerability

hash algorithms

communication modules

ftp services

cve-2018-7242

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.7 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.2%

JSON

Vulnerable hash algorithms exists in Schneider Electric’s Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in all versions of the communication modules. The algorithm used to encrypt the password is vulnerable to hash collision attacks.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

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

include('compat.inc');

if (description)
{
  script_id(501216);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/04");

  script_cve_id("CVE-2018-7242");

  script_name(english:"Schneider Electric Modicon Premium, Modicon Quantum, Modicon M340, and Modicon BMXNOR0200 Use of a Broken or Risky Cryptographic Algorithm (CVE-2018-7242)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"Vulnerable hash algorithms exists in Schneider Electric's Modicon
Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controllers in
all versions of the communication modules. The algorithm used to
encrypt the password is vulnerable to hash collision attacks.

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/103543");
  script_set_attribute(attribute:"see_also", value:"https://ics-cert.us-cert.gov/advisories/ICSA-18-086-01");
  # https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2018-081-01
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9f9c4015");
  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 recommends that users follow the instructions outlined in the Modicon Controllers Platform - Cyber
Security, Reference Manual to install Modicon PLCs securely.

Schneider Electric also recommends that affected users disable FTP services on the device during times when maintenance
or configuration activities are not needed.

For more information please see Schneider Electricâs security notification SEVD-2018-081-01 at:

https://www.schneider-electric.com/en/download/document/SEVD-2018-081-01/");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  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-2018-7242");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(326);

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/04/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/04/18");
  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:140cpu31110_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu31110c_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu43412u_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu43412uc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu65150_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu65150c_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu65160_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu65160c_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu65160s_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu65260_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu65260c_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu65860_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:140cpu65860c_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:bmxnor0200_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:bmxp341000h_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:bmxp342020h_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:bmxp3420302h_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxh5724m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxh5724mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxh5744m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxh5744mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57104m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57104mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57154m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57154mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp571634m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp571634mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57204m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57204mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57254m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57254mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp572634m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp572634mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57304m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57304mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57354m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57354mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp573634m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp573634mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57454m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57454mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp574634m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp574634mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57554m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp57554mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp575634m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp575634mc_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp576634m_firmware:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:tsxp576634mc_firmware:-");
  script_set_attribute(attribute:"generated_plugin", value:"former");
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  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:bmxnor0200_firmware:-" :
        {"family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:bmxnor0200h_firmware:-" :
        {"versionEndExcluding" : "1.7", "family" : "ModiconM340M580CP"},
    "cpe:/o:schneider-electric:140cpu65150_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu31110_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu43412u_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu65160_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu65260_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu65860_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu65160s_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu65150c_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu31110c_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu43412uc_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu65160c_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu65260c_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:140cpu65860c_firmware:-" :
        {"family" : "QuantumUnity"},
    "cpe:/o:schneider-electric:bmxp341000_firmware:-" :
        {"versionEndIncluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp342000_firmware:-" :
        {"versionEndIncluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420102_firmware:-" :
        {"versionEndIncluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420102cl_firmware:-" :
        {"versionEndIncluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp342020_firmware:-" :
        {"versionEndIncluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420302_firmware:-" :
        {"versionEndIncluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420302cl_firmware:-" :
        {"versionEndIncluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp3420302h_firmware:-" :
        {"versionEndIncluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp342020h_firmware:-" :
        {"versionEndIncluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:bmxp341000h_firmware:-" :
        {"versionEndIncluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:tsxh5724m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxh5744m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57104m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57154m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp571634m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57204m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57254m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp572634m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57304m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57354m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp573634m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57454m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp574634m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp575634m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp576634m_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxh5724mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxh5744mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57104mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57154mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp571634mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57204mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57254mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp572634mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57304mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57354mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp573634mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57454mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp574634mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57554mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp575634mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp576634mc_firmware:-" :
        {"family" : "Premium"},
    "cpe:/o:schneider-electric:tsxp57554m_firmware:-" :
        {"family" : "Premium"}
};

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

VendorProductVersionCPE
schneider-electric140cpu31110_firmware-cpe:/o:schneider-electric:140cpu31110_firmware:-
schneider-electric140cpu31110c_firmware-cpe:/o:schneider-electric:140cpu31110c_firmware:-
schneider-electric140cpu43412u_firmware-cpe:/o:schneider-electric:140cpu43412u_firmware:-
schneider-electric140cpu43412uc_firmware-cpe:/o:schneider-electric:140cpu43412uc_firmware:-
schneider-electric140cpu65150_firmware-cpe:/o:schneider-electric:140cpu65150_firmware:-
schneider-electrictsxp575634mc_firmware-cpe:/o:schneider-electric:tsxp575634mc_firmware:-
schneider-electrictsxp576634m_firmware-cpe:/o:schneider-electric:tsxp576634m_firmware:-
schneider-electrictsxp576634mc_firmware-cpe:/o:schneider-electric:tsxp576634mc_firmware:-
schneider-electric140cpu65150c_firmware-cpe:/o:schneider-electric:140cpu65150c_firmware:-
schneider-electric140cpu65160_firmware-cpe:/o:schneider-electric:140cpu65160_firmware:-

Vendor	Product	Version	CPE
schneider-electric	140cpu31110_firmware	-	cpe:/o:schneider-electric:140cpu31110_firmware:-
schneider-electric	140cpu31110c_firmware	-	cpe:/o:schneider-electric:140cpu31110c_firmware:-
schneider-electric	140cpu43412u_firmware	-	cpe:/o:schneider-electric:140cpu43412u_firmware:-
schneider-electric	140cpu43412uc_firmware	-	cpe:/o:schneider-electric:140cpu43412uc_firmware:-
schneider-electric	140cpu65150_firmware	-	cpe:/o:schneider-electric:140cpu65150_firmware:-
schneider-electric	tsxp575634mc_firmware	-	cpe:/o:schneider-electric:tsxp575634mc_firmware:-
schneider-electric	tsxp576634m_firmware	-	cpe:/o:schneider-electric:tsxp576634m_firmware:-
schneider-electric	tsxp576634mc_firmware	-	cpe:/o:schneider-electric:tsxp576634mc_firmware:-
schneider-electric	140cpu65150c_firmware	-	cpe:/o:schneider-electric:140cpu65150c_firmware:-
schneider-electric	140cpu65160_firmware	-	cpe:/o:schneider-electric:140cpu65160_firmware:-

Rows per page:

1-10 of 571

References

cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7242

www.nessus.org/u?9f9c4015

www.securityfocus.com/bid/103543

ics-cert.us-cert.gov/advisories/ICSA-18-086-01

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.7 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.2%

JSON

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