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ID

VAR-202112-2478


CVE

CVE-2021-26264


TITLE

Emerson Electric Emerson DeltaV Distributed Control System Access control error vulnerability

Trust: 0.6

sources: CNNVD: CNNVD-202112-2097

DESCRIPTION

A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.

Trust: 1.0

sources: NVD: CVE-2021-26264

AFFECTED PRODUCTS

vendor:emersonmodel:deltav workstationscope:eqversion: -

Trust: 1.0

vendor:emersonmodel:deltav distributed control systemscope:eqversion: -

Trust: 1.0

sources: NVD: CVE-2021-26264

CVSS

SEVERITY

CVSSV2

CVSSV3

NVD: CVE-2021-26264
value: MEDIUM

Trust: 1.0

CNNVD: CNNVD-202112-2097
value: MEDIUM

Trust: 0.6

NVD: CVE-2021-26264
severity: MEDIUM
baseScore: 4.9
vectorString: AV:L/AC:L/AU:N/C:N/I:N/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 6.9
acInsufInfo: FALSE
obtainAllPrivilege: FALSE
obtainUserPrivilege: FALSE
obtainOtherPrivilege: FALSE
userInteractionRequired: FALSE
version: 2.0

Trust: 1.0

NVD: CVE-2021-26264
baseSeverity: MEDIUM
baseScore: 5.5
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 3.6
version: 3.1

Trust: 1.0

sources: CNNVD: CNNVD-202112-2097 // NVD: CVE-2021-26264

PROBLEMTYPE DATA

problemtype:CWE-306

Trust: 1.0

sources: NVD: CVE-2021-26264

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202112-2097

TYPE

access control error

Trust: 0.6

sources: CNNVD: CNNVD-202112-2097

CONFIGURATIONS

sources:
            
            
            NVD: CVE-2021-26264

PATCH
title:Emerson Electric Emerson DeltaV Distributed Control System Fixes for access control error vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=175474
Trust: 0.6
sources:
            
            
            CNNVD: CNNVD-202112-2097

EXTERNAL IDS
db:NVDid:CVE-2021-26264
Trust: 1.6
db:ICS CERTid:ICSA-21-355-04
Trust: 1.6
db:AUSCERTid:ESB-2022.0078
Trust: 0.6
db:CS-HELPid:SB2022010402
Trust: 0.6
db:CNNVDid:CNNVD-202112-2097
Trust: 0.6
sources:
            
            
            CNNVD: CNNVD-202112-2097 // 
            
            
            
            NVD: CVE-2021-26264

REFERENCES
url:https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-04
Trust: 1.6
url:https://nvd.nist.gov/vuln/detail/cve-2021-26264
Trust: 0.6
url:https://us-cert.cisa.gov/ics/advisories/icsa-21-355-04
Trust: 0.6
url:https://www.auscert.org.au/bulletins/esb-2022.0078
Trust: 0.6
url:https://www.cybersecurity-help.cz/vdb/sb2022010402
Trust: 0.6
sources:
            
            
            CNNVD: CNNVD-202112-2097 // 
            
            
            
            NVD: CVE-2021-26264

CREDITS
Sharon Brizinov of Claroty reported these vulnerabilities to Emerson.
Trust: 0.6
sources:
            
            
            CNNVD: CNNVD-202112-2097

SOURCES
db:CNNVDid:CNNVD-202112-2097
db:NVDid:CVE-2021-26264

LAST UPDATE DATE
2022-05-06T13:03:48.396000+00:00

SOURCES UPDATE DATE
db:CNNVDid:CNNVD-202112-2097date:2022-02-14T00:00:00
db:NVDid:CVE-2021-26264date:2022-02-02T20:28:00

SOURCES RELEASE DATE
db:CNNVDid:CNNVD-202112-2097date:2021-12-21T00:00:00
db:NVDid:CVE-2021-26264date:2022-01-28T20:15:00