Details of VAR-202101-0350

ID

VAR-202101-0350

CVE

CVE-2020-26989

TITLE

Out-of-bounds write vulnerabilities in multiple Siemens products

Trust: 0.8

sources: JVNDB: JVNDB-2020-015271

DESCRIPTION

A vulnerability has been identified in JT2Go (All versions < V13.1.0.1), Solid Edge SE2020 (All Versions < SE2020MP12), Solid Edge SE2021 (All Versions < SE2021MP2), Teamcenter Visualization (All versions < V13.1.0.1). Affected applications lack proper validation of user-supplied data when parsing of PAR files. This could result in a stack based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-11892). Several Siemens products are vulnerable to out-of-bounds writes. Zero Day Initiative To this vulnerability ZDI-CAN-11892 Was numbered.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. 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 PAR files. JT2Go is a 3D JT viewing tool that allows users to view JT, PDF, Solid Edge, PLM XML and existing JT, VFZ, CGM, TIF data. Teamcenter visualization software enables companies to enhance their product lifecycle management (PLM) environment. The software enables corporate users to access documents, 2D drawings and 3D models in a single environment

Trust: 2.79

sources: NVD: CVE-2020-26989 // JVNDB: JVNDB-2020-015271 // ZDI: ZDI-21-050 // CNVD: CNVD-2021-02582

IOT TAXONOMY

category:

['IoT']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-02582

AFFECTED PRODUCTS

vendor:	siemens	model:	solid edge	scope:	lt	version:	se2021	Trust: 1.0
vendor:	siemens	model:	jt2go	scope:	lt	version:	13.1.0.1	Trust: 1.0
vendor:	siemens	model:	solid edge	scope:	eq	version:	se2021	Trust: 1.0
vendor:	siemens	model:	teamcenter visualization	scope:	lt	version:	13.1.0.1	Trust: 1.0
vendor:	シーメンス	model:	teamcenter visualization	scope:	eq	version:	13.1.0.1	Trust: 0.8
vendor:	シーメンス	model:	solid edge	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	jt2go	scope:	-	version:	-	Trust: 0.8
vendor:	siemens	model:	jt2go	scope:	-	version:	-	Trust: 0.7
vendor:	siemens	model:	jt2go	scope:	eq	version:	v13.1.0	Trust: 0.6
vendor:	siemens	model:	teamcenter visualization	scope:	eq	version:	v13.1.0	Trust: 0.6

sources: ZDI: ZDI-21-050 // CNVD: CNVD-2021-02582 // JVNDB: JVNDB-2020-015271 // NVD: CVE-2020-26989

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2020-26989
value:	HIGH
Trust: 1.0
NVD:	CVE-2020-26989
value:	HIGH
Trust: 0.8
ZDI:	CVE-2020-26989
value:	HIGH
Trust: 0.7
CNVD:	CNVD-2021-02582
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202101-848
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2020-26989
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: 1.8
CNVD:	CNVD-2021-02582
severity:	HIGH
baseScore:	7.2
vectorString:	AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector:	LOCAL
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	3.9
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2020-26989
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
NVD:	CVE-2020-26989
baseSeverity:	HIGH
baseScore:	7.8
vectorString:	CVSS:3.0/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:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8
ZDI:	CVE-2020-26989
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-21-050 // CNVD: CNVD-2021-02582 // JVNDB: JVNDB-2020-015271 // CNNVD: CNNVD-202101-848 // NVD: CVE-2020-26989

PROBLEMTYPE DATA

problemtype:	CWE-121	Trust: 1.0
problemtype:	CWE-787	Trust: 1.0
problemtype:	Out-of-bounds writing (CWE-787) [NVD Evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2020-015271 // NVD: CVE-2020-26989

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202101-848

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202101-848

PATCH

title:	SSA-979834	url:	https://cert-portal.siemens.com/productcert/pdf/ssa-622830.pdf	Trust: 0.8
title:	Siemens has issued an update to correct this vulnerability.	url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-012-03/	Trust: 0.7
title:	Patch for JT2Go and Teamcenter Visualization heap buffer overflow vulnerability (CNVD-2021-02582)	url:	https://www.cnvd.org.cn/patchInfo/show/243982	Trust: 0.6
title:	Siemens Jt2go and Teamcenter Visualization Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=139359	Trust: 0.6

sources: ZDI: ZDI-21-050 // CNVD: CNVD-2021-02582 // JVNDB: JVNDB-2020-015271 // CNNVD: CNNVD-202101-848

EXTERNAL IDS

db:	NVD	id:	CVE-2020-26989	Trust: 3.7
db:	ZDI	id:	ZDI-21-050	Trust: 3.1
db:	SIEMENS	id:	SSA-622830	Trust: 2.2
db:	SIEMENS	id:	SSA-663999	Trust: 1.6
db:	SIEMENS	id:	SSA-979834	Trust: 1.6
db:	JVN	id:	JVNVU91685542	Trust: 0.8
db:	JVNDB	id:	JVNDB-2020-015271	Trust: 0.8
db:	ZDI_CAN	id:	ZDI-CAN-11892	Trust: 0.7
db:	CNVD	id:	CNVD-2021-02582	Trust: 0.6
db:	AUSCERT	id:	ESB-2021.0125	Trust: 0.6
db:	AUSCERT	id:	ESB-2021.0495	Trust: 0.6
db:	ICS CERT	id:	ICSA-21-012-03	Trust: 0.6
db:	ICS CERT	id:	ICSA-21-040-06	Trust: 0.6
db:	CNNVD	id:	CNNVD-202101-848	Trust: 0.6

sources: ZDI: ZDI-21-050 // CNVD: CNVD-2021-02582 // JVNDB: JVNDB-2020-015271 // CNNVD: CNNVD-202101-848 // NVD: CVE-2020-26989

REFERENCES

url:	https://www.zerodayinitiative.com/advisories/zdi-21-050/	Trust: 2.4
url:	https://cert-portal.siemens.com/productcert/pdf/ssa-622830.pdf	Trust: 2.2
url:	https://cert-portal.siemens.com/productcert/pdf/ssa-663999.pdf	Trust: 1.6
url:	https://cert-portal.siemens.com/productcert/pdf/ssa-979834.pdf	Trust: 1.6
url:	https://nvd.nist.gov/vuln/detail/cve-2020-26989	Trust: 1.4
url:	https://jvn.jp/vu/jvnvu91685542/	Trust: 0.8
url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-012-03/	Trust: 0.7
url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-012-03	Trust: 0.6
url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-040-06	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2021.0495	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2021.0125/	Trust: 0.6

sources: ZDI: ZDI-21-050 // CNVD: CNVD-2021-02582 // JVNDB: JVNDB-2020-015271 // CNNVD: CNNVD-202101-848 // NVD: CVE-2020-26989

CREDITS

rgod

Trust: 0.7

sources: ZDI: ZDI-21-050

SOURCES

db:	ZDI	id:	ZDI-21-050
db:	CNVD	id:	CNVD-2021-02582
db:	JVNDB	id:	JVNDB-2020-015271
db:	CNNVD	id:	CNNVD-202101-848
db:	NVD	id:	CVE-2020-26989

LAST UPDATE DATE

2024-08-14T13:10:45.684000+00:00

SOURCES UPDATE DATE

db:	ZDI	id:	ZDI-21-050	date:	2021-01-14T00:00:00
db:	CNVD	id:	CNVD-2021-02582	date:	2021-01-13T00:00:00
db:	JVNDB	id:	JVNDB-2020-015271	date:	2021-09-15T08:33:00
db:	CNNVD	id:	CNNVD-202101-848	date:	2021-07-16T00:00:00
db:	NVD	id:	CVE-2020-26989	date:	2021-07-23T19:51:52.917

SOURCES RELEASE DATE

db:	ZDI	id:	ZDI-21-050	date:	2021-01-14T00:00:00
db:	CNVD	id:	CNVD-2021-02582	date:	2021-01-13T00:00:00
db:	JVNDB	id:	JVNDB-2020-015271	date:	2021-09-15T00:00:00
db:	CNNVD	id:	CNNVD-202101-848	date:	2021-01-12T00:00:00
db:	NVD	id:	CVE-2020-26989	date:	2021-01-12T21:15:17.183