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SchneiderCVE-2020-7559

HistoryNov 19, 2020 - 10:15 p.m.

CVE-2020-7559

2020-11-1922:15:14

CWE-120

schneider

web.nvd.nist.gov

cve-2020-7559

cwe-120

buffer overflow

plc simulator

ecostruxure control expert

unity pro

modbus

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

47.8%

JSON

A CWE-120: Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause a crash of the PLC simulator present in EcoStruxureª Control Expert software when receiving a specially crafted request over Modbus.

Affected configurations

Nvd

Node

schneider-electricecostruxure_control_expert

VendorProductVersionCPE
schneider-electricecostruxure_control_expert*cpe:2.3:a:schneider-electric:ecostruxure_control_expert:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
schneider-electric	ecostruxure_control_expert	*	cpe:2.3:a:schneider-electric:ecostruxure_control_expert::::::::

CNA Affected

[
  {
    "product": "PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) ",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions)"
      }
    ]
  }
]

References

www.se.com/ww/en/download/document/SEVD-2020-315-07

www.talosintelligence.com/vulnerability_reports/TALOS-2020-1140

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

47.8%

JSON

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