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[email protected]CVE-2018-7851

HistoryMay 22, 2019 - 8:29 p.m.

CVE-2018-7851

2019-05-2220:29:01

CWE-119

[email protected]

web.nvd.nist.gov

modicon

buffer errors

vulnerability

firmware

denial of service

modbus packet

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

35.2%

JSON

CWE-119: Buffer errors vulnerability exists in Modicon M580 with firmware prior to V2.50, Modicon M340 with firmware prior to V3.01, BMxCRA312xx with firmware prior to V2.40, All firmware versions of Modicon Premium and 140CRA312xxx when sending a specially crafted Modbus packet, which could cause a denial of service to the device that would force a restart to restore availability.

Affected configurations

NVD

Node

schneider-electricm580_firmwareRange<2.50

AND

schneider-electricbmeh582040Match-

schneider-electricbmeh582040cMatch-

schneider-electricbmeh584040Match-

schneider-electricbmeh584040cMatch-

schneider-electricbmeh586040Match-

schneider-electricbmeh586040cMatch-

schneider-electricmodicon_m580_bmep581020Match-

schneider-electricmodicon_m580_bmep581020hMatch-

schneider-electricmodicon_m580_bmep582020Match-

schneider-electricmodicon_m580_bmep582020hMatch-

schneider-electricmodicon_m580_bmep582040Match-

schneider-electricmodicon_m580_bmep582040hMatch-

schneider-electricmodicon_m580_bmep582040sMatch-

schneider-electricmodicon_m580_bmep583020Match-

schneider-electricmodicon_m580_bmep583040Match-

schneider-electricmodicon_m580_bmep584020Match-

schneider-electricmodicon_m580_bmep584040Match-

schneider-electricmodicon_m580_bmep584040sMatch-

schneider-electricmodicon_m580_bmep585040Match-

schneider-electricmodicon_m580_bmep585040cMatch-

schneider-electricmodicon_m580_bmep586040Match-

schneider-electricmodicon_m580_bmep586040cMatch-

Node

schneider-electricm340_firmwareRange<3.01

AND

schneider-electricmodicon_m340_bmxp341000Match-

schneider-electricmodicon_m340_bmxp341000hMatch-

schneider-electricmodicon_m340_bmxp342000Match-

schneider-electricmodicon_m340_bmxp3420102Match-

schneider-electricmodicon_m340_bmxp3420102clMatch-

schneider-electricmodicon_m340_bmxp342020Match-

schneider-electricmodicon_m340_bmxp342020hMatch-

schneider-electricmodicon_m340_bmxp3420302Match-

schneider-electricmodicon_m340_bmxp3420302clMatch-

schneider-electricmodicon_m340_bmxp3420302hMatch-

Node

schneider-electricbmx\/e_cra_firmwareRange<2.40

AND

schneider-electricbmxcra31200Match-

schneider-electricbmxcra31210cMatch-

Node

schneider-electricmodicon_premium_firmware

AND

schneider-electricmodicon_premiumMatch-

Node

schneider-electric140cra312xxx_firmware

AND

schneider-electric140cra312xxxMatch-

CPENameOperatorVersion
schneider-electric:m580_firmwareschneider-electric m580 firmwarelt2.50

CPE	Name	Operator	Version
schneider-electric:m580_firmware	schneider-electric m580 firmware	lt	2.50

CNA Affected

[
  {
    "product": "Modicon M580 with firmware prior to V2.50 Modicon M340 with firmware prior to V3.01 BMxCRA312xx with firmware prior to V2.40 All firmware versions of Modicon Premium and 140CRA312xxx",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Modicon M580 with firmware prior to V2.50 Modicon M340 with firmware prior to V3.01 BMxCRA312xx with firmware prior to V2.40 All firmware versions of Modicon Premium and 140CRA312xxx"
      }
    ]
  }
]

References

www.schneider-electric.com/en/download/document/SEVD-2019-134-10/

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

35.2%

JSON

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