Details of VAR-202107-1400

ID

VAR-202107-1400

CVE

CVE-2021-34305

TITLE

Siemens JT2Go GIF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

Trust: 1.4

sources: ZDI: ZDI-21-834 // ZDI: ZDI-21-833

DESCRIPTION

A vulnerability has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The Gif_loader.dll library in affected applications lacks proper validation of user-supplied data when parsing GIF files. This could result in an out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13340). JT2Go and Teamcenter Visualization There is an input verification vulnerability and an out-of-bounds write vulnerability. Zero Day Initiative To this vulnerability ZDI-CAN-13340 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 GIF files

Trust: 2.97

sources: NVD: CVE-2021-34305 // JVNDB: JVNDB-2021-009333 // ZDI: ZDI-21-834 // ZDI: ZDI-21-833 // VULMON: CVE-2021-34305

AFFECTED PRODUCTS

vendor:	siemens	model:	jt2go	scope:	-	version:	-	Trust: 1.4
vendor:	siemens	model:	jt2go	scope:	lt	version:	13.2.0	Trust: 1.0
vendor:	siemens	model:	teamcenter visualization	scope:	lt	version:	13.2.0	Trust: 1.0
vendor:	シーメンス	model:	teamcenter visualization	scope:	eq	version:	13.2	Trust: 0.8
vendor:	シーメンス	model:	jt2go	scope:	-	version:	-	Trust: 0.8

sources: ZDI: ZDI-21-834 // ZDI: ZDI-21-833 // JVNDB: JVNDB-2021-009333 // NVD: CVE-2021-34305

CVSS

SEVERITY

CVSSV2

CVSSV3

NVD:	CVE-2021-34305
value:	HIGH
Trust: 1.8
ZDI:	CVE-2021-34305
value:	HIGH
Trust: 1.4
CNNVD:	CNNVD-202107-880
value:	HIGH
Trust: 0.6
VULMON:	CVE-2021-34305
value:	MEDIUM
Trust: 0.1

NVD:
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:	FALSE
obtainAllPrivilege:	FALSE
obtainUserPrivilege:	FALSE
obtainOtherPrivilege:	FALSE
userInteractionRequired:	TRUE
version:	2.0
Trust: 1.0
NVD:	CVE-2021-34305
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:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.9

ZDI:	CVE-2021-34305
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: 1.4
NVD:
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-2021-34305
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

sources: ZDI: ZDI-21-834 // ZDI: ZDI-21-833 // VULMON: CVE-2021-34305 // JVNDB: JVNDB-2021-009333 // NVD: CVE-2021-34305 // CNNVD: CNNVD-202107-880

PROBLEMTYPE DATA

problemtype:	CWE-787	Trust: 1.0
problemtype:	Incorrect input confirmation (CWE-20) [NVD Evaluation ]	Trust: 0.8
problemtype:	Out-of-bounds writing (CWE-787) [NVD Evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-009333 // NVD: CVE-2021-34305

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202107-880

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202107-880

CONFIGURATIONS

sources: NVD: CVE-2021-34305

PATCH

title:	-	url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-194-15https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf	Trust: 1.4
title:	SSA-483182	url:	https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf	Trust: 0.8
title:	Siemens Jt2go and Siemens Teamcenter Visualization Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=156573	Trust: 0.6
title:	Siemens Security Advisories: Siemens Security Advisory	url:	https://vulmon.com/vendoradvisory?qidtp=siemens_security_advisories&qid=aa85c53444a3e0726ddb55922c9060c8	Trust: 0.1

sources: ZDI: ZDI-21-834 // ZDI: ZDI-21-833 // VULMON: CVE-2021-34305 // JVNDB: JVNDB-2021-009333 // CNNVD: CNNVD-202107-880

EXTERNAL IDS

db:	NVD	id:	CVE-2021-34305	Trust: 4.7
db:	ZDI	id:	ZDI-21-833	Trust: 3.2
db:	ZDI	id:	ZDI-21-834	Trust: 2.3
db:	SIEMENS	id:	SSA-483182	Trust: 1.7
db:	JVNDB	id:	JVNDB-2021-009333	Trust: 0.8
db:	ZDI_CAN	id:	ZDI-CAN-13341	Trust: 0.7
db:	ZDI_CAN	id:	ZDI-CAN-13340	Trust: 0.7
db:	ICS CERT	id:	ICSA-21-194-15	Trust: 0.6
db:	CNNVD	id:	CNNVD-202107-880	Trust: 0.6
db:	VULMON	id:	CVE-2021-34305	Trust: 0.1

sources: ZDI: ZDI-21-834 // ZDI: ZDI-21-833 // VULMON: CVE-2021-34305 // JVNDB: JVNDB-2021-009333 // NVD: CVE-2021-34305 // CNNVD: CNNVD-202107-880

REFERENCES

url:	https://www.zerodayinitiative.com/advisories/zdi-21-833/	Trust: 2.5
url:	https://www.zerodayinitiative.com/advisories/zdi-21-834/	Trust: 2.2
url:	https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf	Trust: 1.7
url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-194-15https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf	Trust: 1.4
url:	https://nvd.nist.gov/vuln/detail/cve-2021-34305	Trust: 1.4
url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-194-15	Trust: 0.6
url:	https://cwe.mitre.org/data/definitions/20.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: ZDI: ZDI-21-834 // ZDI: ZDI-21-833 // VULMON: CVE-2021-34305 // JVNDB: JVNDB-2021-009333 // NVD: CVE-2021-34305 // CNNVD: CNNVD-202107-880

CREDITS

Brian Gorenc of Trend Micro Zero Day Initiative

Trust: 2.0

sources: ZDI: ZDI-21-834 // ZDI: ZDI-21-833 // CNNVD: CNNVD-202107-880

SOURCES

db:	ZDI	id:	ZDI-21-834
db:	ZDI	id:	ZDI-21-833
db:	VULMON	id:	CVE-2021-34305
db:	JVNDB	id:	JVNDB-2021-009333
db:	NVD	id:	CVE-2021-34305
db:	CNNVD	id:	CNNVD-202107-880

LAST UPDATE DATE

2023-12-18T11:03:48.904000+00:00

SOURCES UPDATE DATE

db:	ZDI	id:	ZDI-21-834	date:	2021-07-19T00:00:00
db:	ZDI	id:	ZDI-21-833	date:	2021-07-19T00:00:00
db:	VULMON	id:	CVE-2021-34305	date:	2021-07-19T00:00:00
db:	JVNDB	id:	JVNDB-2021-009333	date:	2022-04-20T08:58:00
db:	NVD	id:	CVE-2021-34305	date:	2021-07-27T16:27:39.957
db:	CNNVD	id:	CNNVD-202107-880	date:	2021-08-25T00:00:00

SOURCES RELEASE DATE

db:	ZDI	id:	ZDI-21-834	date:	2021-07-19T00:00:00
db:	ZDI	id:	ZDI-21-833	date:	2021-07-19T00:00:00
db:	VULMON	id:	CVE-2021-34305	date:	2021-07-13T00:00:00
db:	JVNDB	id:	JVNDB-2021-009333	date:	2022-04-20T00:00:00
db:	NVD	id:	CVE-2021-34305	date:	2021-07-13T11:15:11.283
db:	CNNVD	id:	CNNVD-202107-880	date:	2021-07-13T00:00:00