Details of VAR-202301-2034

ID

VAR-202301-2034

CVE

CVE-2022-4634

TITLE

Delta Industrial Automation CNCSoft DPB File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

Trust: 0.7

sources: ZDI: ZDI-23-1021

DESCRIPTION

All versions prior to Delta Electronic’s CNCSoft version 1.01.34 (running ScreenEditor versions 1.01.5 and prior) are vulnerable to a stack-based buffer overflow, which could allow an attacker to remotely 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 DPB 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

Trust: 1.53

sources: NVD: CVE-2022-4634 // ZDI: ZDI-23-1021

AFFECTED PRODUCTS

vendor:	deltaww	model:	screeneditor	scope:	lt	version:	1.01.5	Trust: 1.0
vendor:	deltaww	model:	cncsoft	scope:	lt	version:	1.01.34	Trust: 1.0
vendor:	delta	model:	cncsoft	scope:	-	version:	-	Trust: 0.7

sources: ZDI: ZDI-23-1021 // NVD: CVE-2022-4634

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2022-4634
value:	HIGH
Trust: 1.0
ics-cert@hq.dhs.gov:	CVE-2022-4634
value:	HIGH
Trust: 1.0
ZDI:	CVE-2022-4634
value:	HIGH
Trust: 0.7
CNNVD:	CNNVD-202301-2160
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2022-4634
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: 2.0
ZDI:	CVE-2022-4634
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-23-1021 // CNNVD: CNNVD-202301-2160 // NVD: CVE-2022-4634 // NVD: CVE-2022-4634

PROBLEMTYPE DATA

problemtype:	CWE-121	Trust: 1.0
problemtype:	CWE-787	Trust: 1.0

sources: NVD: CVE-2022-4634

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202301-2160

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202301-2160

PATCH

title:	Delta Electronics has issued an update to correct this vulnerability.	url:	https://www.cisa.gov/news-events/ics-advisories/icsa-23-026-01	Trust: 0.7
title:	Delta Electronics CNCSoft Buffer error vulnerability fix	url:	http://123.124.177.30/web/xxk/bdxqById.tag?id=224777	Trust: 0.6

sources: ZDI: ZDI-23-1021 // CNNVD: CNNVD-202301-2160

EXTERNAL IDS

db:	NVD	id:	CVE-2022-4634	Trust: 2.4
db:	ICS CERT	id:	ICSA-23-026-01	Trust: 1.7
db:	ZDI_CAN	id:	ZDI-CAN-18014	Trust: 0.7
db:	ZDI	id:	ZDI-23-1021	Trust: 0.7
db:	AUSCERT	id:	ESB-2023.0506	Trust: 0.6
db:	CNNVD	id:	CNNVD-202301-2160	Trust: 0.6
db:	VULMON	id:	CVE-2022-4634	Trust: 0.1

sources: ZDI: ZDI-23-1021 // VULMON: CVE-2022-4634 // CNNVD: CNNVD-202301-2160 // NVD: CVE-2022-4634

REFERENCES

url:	https://www.cisa.gov/uscert/ics/advisories/icsa-23-026-01	Trust: 1.7
url:	https://www.cisa.gov/news-events/ics-advisories/icsa-23-026-01	Trust: 0.7
url:	https://www.auscert.org.au/bulletins/esb-2023.0506	Trust: 0.6
url:	https://cxsecurity.com/cveshow/cve-2022-4634/	Trust: 0.6

sources: ZDI: ZDI-23-1021 // VULMON: CVE-2022-4634 // CNNVD: CNNVD-202301-2160 // NVD: CVE-2022-4634

CREDITS

Simon Humbert of Trend Micro Security Research

Trust: 0.7

sources: ZDI: ZDI-23-1021

SOURCES

db:	ZDI	id:	ZDI-23-1021
db:	VULMON	id:	CVE-2022-4634
db:	CNNVD	id:	CNNVD-202301-2160
db:	NVD	id:	CVE-2022-4634

LAST UPDATE DATE

2024-08-14T14:02:07.936000+00:00

SOURCES UPDATE DATE

db:	ZDI	id:	ZDI-23-1021	date:	2023-08-04T00:00:00
db:	CNNVD	id:	CNNVD-202301-2160	date:	2023-02-13T00:00:00
db:	NVD	id:	CVE-2022-4634	date:	2023-11-07T03:58:25.287

SOURCES RELEASE DATE

db:	ZDI	id:	ZDI-23-1021	date:	2023-08-04T00:00:00
db:	CNNVD	id:	CNNVD-202301-2160	date:	2023-01-27T00:00:00
db:	NVD	id:	CVE-2022-4634	date:	2023-02-03T03:15:08.140