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SchneiderCVE-2019-6843

HistoryOct 29, 2019 - 7:15 p.m.

CVE-2019-6843

2019-10-2919:15:21

CWE-755

schneider

web.nvd.nist.gov

cve-2019-6843

cwe-755

modicon m580

modicon m340

modicon plc

denial of service

firmware

ftp protocol

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

AI Score

4.9

Confidence

High

EPSS

0.001

Percentile

35.0%

JSON

A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 with firmware (version prior to V3.10), Modicon M340 (all firmware versions), and Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the controller with an empty firmware package using FTP protocol.

Affected configurations

Nvd

Node

schneider-electricmodicon_m580_firmware

AND

schneider-electricmodicon_m580Match-

Node

schneider-electricmodicon_m340_firmware

AND

schneider-electricmodicon_m340Match-

Node

schneider-electricmodicon_bmxcra_firmware

AND

schneider-electricmodicon_bmxcraMatch-

Node

schneider-electricmodicon_140craMatch-

AND

schneider-electricmodicon_140cra_firmware

VendorProductVersionCPE
schneider-electricmodicon_m580_firmware*cpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:*
schneider-electricmodicon_m580-cpe:2.3:h:schneider-electric:modicon_m580:-:*:*:*:*:*:*:*
schneider-electricmodicon_m340_firmware*cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:*
schneider-electricmodicon_m340-cpe:2.3:h:schneider-electric:modicon_m340:-:*:*:*:*:*:*:*
schneider-electricmodicon_bmxcra_firmware*cpe:2.3:o:schneider-electric:modicon_bmxcra_firmware:*:*:*:*:*:*:*:*
schneider-electricmodicon_bmxcra-cpe:2.3:h:schneider-electric:modicon_bmxcra:-:*:*:*:*:*:*:*
schneider-electricmodicon_140cra-cpe:2.3:h:schneider-electric:modicon_140cra:-:*:*:*:*:*:*:*
schneider-electricmodicon_140cra_firmware*cpe:2.3:o:schneider-electric:modicon_140cra_firmware:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
schneider-electric	modicon_m580_firmware	*	cpe:2.3:o:schneider-electric:modicon_m580_firmware::::::::
schneider-electric	modicon_m580	-	cpe:2.3:h:schneider-electric:modicon_m580:-:::::::*
schneider-electric	modicon_m340_firmware	*	cpe:2.3:o:schneider-electric:modicon_m340_firmware::::::::
schneider-electric	modicon_m340	-	cpe:2.3:h:schneider-electric:modicon_m340:-:::::::*
schneider-electric	modicon_bmxcra_firmware	*	cpe:2.3:o:schneider-electric:modicon_bmxcra_firmware::::::::
schneider-electric	modicon_bmxcra	-	cpe:2.3:h:schneider-electric:modicon_bmxcra:-:::::::*
schneider-electric	modicon_140cra	-	cpe:2.3:h:schneider-electric:modicon_140cra:-:::::::*
schneider-electric	modicon_140cra_firmware	*	cpe:2.3:o:schneider-electric:modicon_140cra_firmware::::::::

CNA Affected

[
  {
    "product": "Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)"
      }
    ]
  }
]

References

www.se.com/ww/en/download/document/SEVD-2019-281-02/

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

AI Score

4.9

Confidence

High

EPSS

0.001

Percentile

35.0%

JSON

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