Details of VAR-202006-1533

ID

VAR-202006-1533

CVE

CVE-2020-7502

TITLE

Modicon M218 Logic Controller Out-of-bounds write vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2020-006944

DESCRIPTION

A CWE-787: Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (Firmware version 4.3 and prior), which may cause a Denial of Service when specific TCP/IP crafted packets are sent to the Modicon M218 Logic Controller. Modicon M218 Logic Controller Is vulnerable to out-of-bounds writes.Service operation interruption (DoS) It may be put into a state. Schneider Electric Modicon M218 Logic Controller is a programmable logic controller of French Schneider Electric (Schneider Electric) company

Trust: 2.25

sources: NVD: CVE-2020-7502 // JVNDB: JVNDB-2020-006944 // CNVD: CNVD-2021-25689 // VULMON: CVE-2020-7502

IOT TAXONOMY

category:

['ICS']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-25689

AFFECTED PRODUCTS

vendor:	schneider electric	model:	modicon m218	scope:	lte	version:	4.3	Trust: 1.0
vendor:	schneider electric	model:	modicon m218	scope:	eq	version:	4.3	Trust: 0.8
vendor:	schneider	model:	electric modicon m218	scope:	lte	version:	<=4.3	Trust: 0.6

sources: CNVD: CNVD-2021-25689 // JVNDB: JVNDB-2020-006944 // NVD: CVE-2020-7502

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2020-7502
value:	HIGH
Trust: 1.0
NVD:	JVNDB-2020-006944
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-25689
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202006-1087
value:	HIGH
Trust: 0.6
VULMON:	CVE-2020-7502
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2020-7502
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.1
NVD:	JVNDB-2020-006944
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
CNVD:	CNVD-2021-25689
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2020-7502
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	JVNDB-2020-006944
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2021-25689 // VULMON: CVE-2020-7502 // JVNDB: JVNDB-2020-006944 // CNNVD: CNNVD-202006-1087 // NVD: CVE-2020-7502

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2020-006944 // NVD: CVE-2020-7502

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202006-1087

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202006-1087

CONFIGURATIONS

sources: JVNDB: JVNDB-2020-006944

PATCH

title:	SEVD-2020-161-01	url:	https://www.se.com/ww/en/download/document/SEVD-2020-161-01/	Trust: 0.8
title:	Patch for Schneider Electric Modicon M218 Logic Controller buffer overflow vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/256391	Trust: 0.6
title:	Schneider Electric Modicon M218 Logic Controller Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=122530	Trust: 0.6

sources: CNVD: CNVD-2021-25689 // JVNDB: JVNDB-2020-006944 // CNNVD: CNNVD-202006-1087

EXTERNAL IDS

db:	NVD	id:	CVE-2020-7502	Trust: 3.1
db:	SCHNEIDER	id:	SEVD-2020-161-01	Trust: 1.7
db:	JVNDB	id:	JVNDB-2020-006944	Trust: 0.8
db:	CNVD	id:	CNVD-2021-25689	Trust: 0.6
db:	CNNVD	id:	CNNVD-202006-1087	Trust: 0.6
db:	VULMON	id:	CVE-2020-7502	Trust: 0.1

sources: CNVD: CNVD-2021-25689 // VULMON: CVE-2020-7502 // JVNDB: JVNDB-2020-006944 // CNNVD: CNNVD-202006-1087 // NVD: CVE-2020-7502

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2020-7502	Trust: 2.0
url:	https://www.se.com/ww/en/download/document/sevd-2020-161-01	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7502	Trust: 0.8
url:	https://cwe.mitre.org/data/definitions/787.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: CNVD: CNVD-2021-25689 // VULMON: CVE-2020-7502 // JVNDB: JVNDB-2020-006944 // CNNVD: CNNVD-202006-1087 // NVD: CVE-2020-7502

SOURCES

db:	CNVD	id:	CNVD-2021-25689
db:	VULMON	id:	CVE-2020-7502
db:	JVNDB	id:	JVNDB-2020-006944
db:	CNNVD	id:	CNNVD-202006-1087
db:	NVD	id:	CVE-2020-7502

LAST UPDATE DATE

2024-11-23T23:11:24.234000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-25689	date:	2021-04-08T00:00:00
db:	VULMON	id:	CVE-2020-7502	date:	2022-01-31T00:00:00
db:	JVNDB	id:	JVNDB-2020-006944	date:	2020-07-22T00:00:00
db:	CNNVD	id:	CNNVD-202006-1087	date:	2022-03-10T00:00:00
db:	NVD	id:	CVE-2020-7502	date:	2024-11-21T05:37:16.223

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-25689	date:	2021-04-08T00:00:00
db:	VULMON	id:	CVE-2020-7502	date:	2020-06-16T00:00:00
db:	JVNDB	id:	JVNDB-2020-006944	date:	2020-07-22T00:00:00
db:	CNNVD	id:	CNNVD-202006-1087	date:	2020-06-16T00:00:00
db:	NVD	id:	CVE-2020-7502	date:	2020-06-16T20:15:15.050