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ID

VAR-202108-0771


CVE

CVE-2021-33019


TITLE

Delta Industrial Automation DOPSoft TBK File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

Trust: 0.7

sources: ZDI: ZDI-21-1059

DESCRIPTION

A stack-based buffer overflow vulnerability in Delta Electronics DOPSoft Version 4.00.11 and prior may be exploited by processing a specially crafted project file, which may allow an attacker to execute arbitrary code. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.The specific flaw exists within the parsing of TBK files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. DOPSoft is a human-machine interface (HMI) programming software launched by Delta Electronics. A stack buffer overflow vulnerability exists in DOPSoft 4.00.11 and earlier versions. Pillow is a Python-based image processing library. There is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements

Trust: 2.7

sources: NVD: CVE-2021-33019 // ZDI: ZDI-21-1059 // CNVD: CNVD-2021-93912 // CNNVD: CNNVD-202104-975 // VULMON: CVE-2021-33019

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-93912

AFFECTED PRODUCTS

vendor:deltawwmodel:dopsoftscope:lteversion:4.00.11

Trust: 1.0

vendor:delta industrial automationmodel:dopsoftscope: - version: -

Trust: 0.7

vendor:deltamodel:dopsoftscope:lteversion:<=4.00.11

Trust: 0.6

sources: ZDI: ZDI-21-1059 // CNVD: CNVD-2021-93912 // NVD: CVE-2021-33019

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-33019
value: HIGH

Trust: 1.0

ZDI: CVE-2021-33019
value: HIGH

Trust: 0.7

CNVD: CNVD-2021-93912
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202104-975
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202108-2379
value: HIGH

Trust: 0.6

VULMON: CVE-2021-33019
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-33019
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

CNVD: CNVD-2021-93912
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-33019
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 5.9
version: 3.1

Trust: 1.0

ZDI: CVE-2021-33019
baseSeverity: HIGH
baseScore: 7.8
vectorString: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 5.9
version: 3.0

Trust: 0.7

sources: ZDI: ZDI-21-1059 // CNVD: CNVD-2021-93912 // VULMON: CVE-2021-33019 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202108-2379 // NVD: CVE-2021-33019

PROBLEMTYPE DATA

problemtype:CWE-121

Trust: 1.0

problemtype:CWE-787

Trust: 1.0

sources: NVD: CVE-2021-33019

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202108-2379

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202104-975

PATCH

title:Delta Industrial Automation has issued an update to correct this vulnerability.url:https://us-cert.cisa.gov/ics/advisories/icsa-21-238-04

Trust: 0.7

title:CVE-2021-33019url:https://github.com/AlAIAL90/CVE-2021-33019

Trust: 0.1

sources: ZDI: ZDI-21-1059 // VULMON: CVE-2021-33019

EXTERNAL IDS

db:NVDid:CVE-2021-33019

Trust: 3.0

db:ZDIid:ZDI-21-1059

Trust: 2.4

db:ICS CERTid:ICSA-21-238-04

Trust: 2.3

db:ZDI_CANid:ZDI-CAN-12877

Trust: 0.7

db:CNVDid:CNVD-2021-93912

Trust: 0.6

db:CS-HELPid:SB2021041363

Trust: 0.6

db:CNNVDid:CNNVD-202104-975

Trust: 0.6

db:AUSCERTid:ESB-2021.2913

Trust: 0.6

db:CS-HELPid:SB2021082704

Trust: 0.6

db:CNNVDid:CNNVD-202108-2379

Trust: 0.6

db:VULMONid:CVE-2021-33019

Trust: 0.1

sources: ZDI: ZDI-21-1059 // CNVD: CNVD-2021-93912 // VULMON: CVE-2021-33019 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202108-2379 // NVD: CVE-2021-33019

REFERENCES

url:https://us-cert.cisa.gov/ics/advisories/icsa-21-238-04

Trust: 3.6

url:https://www.zerodayinitiative.com/advisories/zdi-21-1059/

Trust: 2.4

url:https://www.cybersecurity-help.cz/vdb/sb2021041363

Trust: 0.6

url:https://www.cybersecurity-help.cz/vdb/sb2021082704

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2021.2913

Trust: 0.6

url:https://cwe.mitre.org/data/definitions/787.html

Trust: 0.1

url:https://cwe.mitre.org/data/definitions/121.html

Trust: 0.1

url:https://github.com/alaial90/cve-2021-33019

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: ZDI: ZDI-21-1059 // CNVD: CNVD-2021-93912 // VULMON: CVE-2021-33019 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202108-2379 // NVD: CVE-2021-33019

CREDITS

Anonymous

Trust: 1.3

sources: ZDI: ZDI-21-1059 // CNNVD: CNNVD-202108-2379

SOURCES

db:ZDIid:ZDI-21-1059
db:CNVDid:CNVD-2021-93912
db:VULMONid:CVE-2021-33019
db:CNNVDid:CNNVD-202104-975
db:CNNVDid:CNNVD-202108-2379
db:NVDid:CVE-2021-33019

LAST UPDATE DATE

2024-08-14T12:05:55.521000+00:00


SOURCES UPDATE DATE

db:ZDIid:ZDI-21-1059date:2021-09-08T00:00:00
db:CNVDid:CNVD-2021-93912date:2022-01-18T00:00:00
db:VULMONid:CVE-2021-33019date:2021-09-16T00:00:00
db:CNNVDid:CNNVD-202104-975date:2021-04-14T00:00:00
db:CNNVDid:CNNVD-202108-2379date:2021-09-09T00:00:00
db:NVDid:CVE-2021-33019date:2021-09-16T12:37:40.923

SOURCES RELEASE DATE

db:ZDIid:ZDI-21-1059date:2021-09-08T00:00:00
db:CNVDid:CNVD-2021-93912date:2021-12-03T00:00:00
db:VULMONid:CVE-2021-33019date:2021-08-30T00:00:00
db:CNNVDid:CNNVD-202104-975date:2021-04-13T00:00:00
db:CNNVDid:CNNVD-202108-2379date:2021-08-26T00:00:00
db:NVDid:CVE-2021-33019date:2021-08-30T18:15:09.533