Details of VAR-202105-0790

ID

VAR-202105-0790

CVE

CVE-2021-25661

TITLE

Vulnerabilities in access to memory areas after buffer termination in multiple Siemens products

Trust: 0.8

sources: JVNDB: JVNDB-2021-006946

DESCRIPTION

A vulnerability has been identified in SIMATIC HMI Comfort Outdoor Panels V15 7\" & 15\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Outdoor Panels V16 7\" & 15\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI Comfort Panels V15 4\" - 22\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Panels V16 4\" - 22\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI KTP Mobile Panels V15 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15.1 Update 6), SIMATIC HMI KTP Mobile Panels V16 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V16 Update 4), SIMATIC WinCC Runtime Advanced V15 (All versions < V15.1 Update 6), SIMATIC WinCC Runtime Advanced V16 (All versions < V16 Update 4). SmartVNC has an out-of-bounds memory access vulnerability that could be triggered on the client side when sending data from the server, which could result in a Denial-of-Service condition. Several Siemens products are vulnerable to access to memory areas after buffer termination.Denial of service (DoS) It may be put into a state. 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: 2.25

sources: NVD: CVE-2021-25661 // JVNDB: JVNDB-2021-006946 // CNNVD: CNNVD-202104-975 // VULMON: CVE-2021-25661

AFFECTED PRODUCTS

vendor:	siemens	model:	simatic wincc runtime advanced	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700f	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp400f	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 15\"	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic wincc runtime advanced	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700f	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900f	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 15\"	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 7\"	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 4\"	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700f	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900f	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 22\"	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 7\"	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic wincc runtime advanced	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 4\"	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700f	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 22\"	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp400f	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 15\"	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 4\"	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic wincc runtime advanced	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 15\"	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp400f	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 7\"	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 4\"	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900f	scope:	eq	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 22\"	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort outdoor panels 7\"	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp700	scope:	lt	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp900f	scope:	eq	version:	15.1	Trust: 1.0
vendor:	siemens	model:	simatic hmi ktp mobile panels ktp400f	scope:	lt	version:	16	Trust: 1.0
vendor:	siemens	model:	simatic hmi comfort panels 22\"	scope:	lt	version:	15.1	Trust: 1.0
vendor:	シーメンス	model:	simatic hmi ktp mobile panels ktp900	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic hmi ktp mobile panels ktp900f	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic hmi comfort outdoor panels 7"	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic hmi comfort outdoor panels 15"	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic hmi ktp mobile panels ktp700	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic hmi ktp mobile panels ktp400f	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic hmi ktp mobile panels ktp700f	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic hmi comfort panels 4"	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic wincc runtime advanced	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic hmi comfort panels 22"	scope:	-	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2021-006946 // NVD: CVE-2021-25661

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-25661
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-25661
value:	HIGH
Trust: 0.8
CNNVD:	CNNVD-202104-975
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202105-546
value:	HIGH
Trust: 0.6
VULMON:	CVE-2021-25661
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-25661
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9

nvd@nist.gov:	CVE-2021-25661
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2021-25661
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: VULMON: CVE-2021-25661 // JVNDB: JVNDB-2021-006946 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-546 // NVD: CVE-2021-25661

PROBLEMTYPE DATA

problemtype:	CWE-788	Trust: 1.0
problemtype:	Access to memory area after buffer termination (CWE-788) [ Other ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-006946 // NVD: CVE-2021-25661

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202105-546

TYPE

other

Trust: 1.2

sources: CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-546

PATCH

title:	SSA-538778	url:	https://cert-portal.siemens.com/productcert/pdf/ssa-538778.pdf	Trust: 0.8
title:	Siemens SmartVNC Security vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=155974	Trust: 0.6
title:	Siemens Security Advisories: Siemens Security Advisory	url:	https://vulmon.com/vendoradvisory?qidtp=siemens_security_advisories&qid=9465a8ef1f8c1b0042244cb02cfe271e	Trust: 0.1

sources: VULMON: CVE-2021-25661 // JVNDB: JVNDB-2021-006946 // CNNVD: CNNVD-202105-546

EXTERNAL IDS

db:	NVD	id:	CVE-2021-25661	Trust: 3.3
db:	ICS CERT	id:	ICSA-21-131-12	Trust: 2.5
db:	SIEMENS	id:	SSA-538778	Trust: 1.7
db:	JVN	id:	JVNVU91051134	Trust: 0.8
db:	JVNDB	id:	JVNDB-2021-006946	Trust: 0.8
db:	CS-HELP	id:	SB2021041363	Trust: 0.6
db:	CNNVD	id:	CNNVD-202104-975	Trust: 0.6
db:	CS-HELP	id:	SB2021051206	Trust: 0.6
db:	CNNVD	id:	CNNVD-202105-546	Trust: 0.6
db:	VULMON	id:	CVE-2021-25661	Trust: 0.1

sources: VULMON: CVE-2021-25661 // JVNDB: JVNDB-2021-006946 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-546 // NVD: CVE-2021-25661

REFERENCES

url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-131-12	Trust: 2.3
url:	https://cert-portal.siemens.com/productcert/pdf/ssa-538778.pdf	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2021-25661	Trust: 1.4
url:	https://jvn.jp/vu/jvnvu91051134/	Trust: 0.8
url:	https://www.cisa.gov/uscert/ics/advisories/icsa-21-131-12	Trust: 0.8
url:	https://www.cybersecurity-help.cz/vdb/sb2021041363	Trust: 0.6
url:	https://www.cybersecurity-help.cz/vdb/sb2021051206	Trust: 0.6
url:	https://vigilance.fr/vulnerability/smartvnc-multiple-vulnerabilities-35360	Trust: 0.6
url:	https://cwe.mitre.org/data/definitions/788.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1
url:	https://cert-portal.siemens.com/productcert/txt/ssa-538778.txt	Trust: 0.1

sources: VULMON: CVE-2021-25661 // JVNDB: JVNDB-2021-006946 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-546 // NVD: CVE-2021-25661

CREDITS

Siemens reported these vulnerabilities to CISA.

Trust: 0.6

sources: CNNVD: CNNVD-202105-546

SOURCES

db:	VULMON	id:	CVE-2021-25661
db:	JVNDB	id:	JVNDB-2021-006946
db:	CNNVD	id:	CNNVD-202104-975
db:	CNNVD	id:	CNNVD-202105-546
db:	NVD	id:	CVE-2021-25661

LAST UPDATE DATE

2024-08-14T13:12:15.959000+00:00

SOURCES UPDATE DATE

db:	VULMON	id:	CVE-2021-25661	date:	2021-05-21T00:00:00
db:	JVNDB	id:	JVNDB-2021-006946	date:	2022-01-26T07:30:00
db:	CNNVD	id:	CNNVD-202104-975	date:	2021-04-14T00:00:00
db:	CNNVD	id:	CNNVD-202105-546	date:	2021-10-13T00:00:00
db:	NVD	id:	CVE-2021-25661	date:	2021-12-16T18:26:51.387

SOURCES RELEASE DATE

db:	VULMON	id:	CVE-2021-25661	date:	2021-05-12T00:00:00
db:	JVNDB	id:	JVNDB-2021-006946	date:	2022-01-26T00:00:00
db:	CNNVD	id:	CNNVD-202104-975	date:	2021-04-13T00:00:00
db:	CNNVD	id:	CNNVD-202105-546	date:	2021-05-11T00:00:00
db:	NVD	id:	CVE-2021-25661	date:	2021-05-12T14:15:11.300