Details of VAR-202104-1127

ID

VAR-202104-1127

CVE

CVE-2021-25668

TITLE

Siemens SCALANCE X-200 Web Server Heap Buffer Overflow Vulnerability

Trust: 0.6

sources: CNVD: CNVD-2021-28700

DESCRIPTION

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT PRO (All versions < 5.5.1), SCALANCE X202-2 IRT (All versions < 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions < 5.5.1), SCALANCE X202-2P IRT PRO (All versions < 5.5.1), SCALANCE X204 IRT (All versions < 5.5.1), SCALANCE X204 IRT PRO (All versions < 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2FM (All versions < V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2LD TS (All versions < V5.2.5), SCALANCE X204-2TS (All versions < V5.2.5), SCALANCE X206-1 (All versions < V5.2.5), SCALANCE X206-1LD (All versions < V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X208PRO (All versions < V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X212-2LD (All versions < V5.2.5), SCALANCE X216 (All versions < V5.2.5), SCALANCE X224 (All versions < V5.2.5), SCALANCE XF201-3P IRT (All versions < 5.5.1), SCALANCE XF202-2P IRT (All versions < 5.5.1), SCALANCE XF204 (All versions < V5.2.5), SCALANCE XF204 IRT (All versions < 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE XF204-2BA IRT (All versions < 5.5.1), SCALANCE XF206-1 (All versions < V5.2.5), SCALANCE XF208 (All versions < V5.2.5). Incorrect processing of POST requests in the webserver may result in write out of bounds in heap. An attacker might leverage this to cause denial-of-service on the device and potentially remotely execute code. Siemens SCALANCE X switches are used to connect industrial components, such as programmable logic controllers (PLC) or human machine interfaces (HMI). The Siemens SCALANCE X-200 Web server has a heap buffer overflow vulnerability. 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: 2.07

sources: NVD: CVE-2021-25668 // CNVD: CNVD-2021-28700 // CNNVD: CNNVD-202104-975 // VULMON: CVE-2021-25668

IOT TAXONOMY

category:

['ICS']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-28700

AFFECTED PRODUCTS

vendor:	siemens	model:	scalance x200-4p irt	scope:	lt	version:	5.5.1	Trust: 1.6
vendor:	siemens	model:	scalance x201-3p irt	scope:	lt	version:	5.5.1	Trust: 1.6
vendor:	siemens	model:	scalance x201-3p irt pro	scope:	lt	version:	5.5.1	Trust: 1.6
vendor:	siemens	model:	scalance x202-2p irt	scope:	lt	version:	5.5.1	Trust: 1.6
vendor:	siemens	model:	scalance x202-2p irt pro	scope:	lt	version:	5.5.1	Trust: 1.6
vendor:	siemens	model:	scalance xf201-3p irt	scope:	lt	version:	5.5.1	Trust: 1.6
vendor:	siemens	model:	scalance xf202-2p irt	scope:	lt	version:	5.5.1	Trust: 1.6
vendor:	siemens	model:	scalance xf204 irt	scope:	lt	version:	5.5.1	Trust: 1.6
vendor:	siemens	model:	scalance xf204-2ba irt	scope:	lt	version:	5.5.1	Trust: 1.6
vendor:	siemens	model:	scalance x208	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance xf204	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x204-2	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x224	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x204 irt	scope:	lt	version:	5.5.1	Trust: 1.0
vendor:	siemens	model:	scalance x204-2ts	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x206-1ld	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x216	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance xf206-1	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x204-2ld	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x212-2ld	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance xf208	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x206-1	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x202-2 irt	scope:	lt	version:	5.5.1	Trust: 1.0
vendor:	siemens	model:	scalance x204 irt pro	scope:	lt	version:	5.5.1	Trust: 1.0
vendor:	siemens	model:	scalance xf204-2	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x204-2fm	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x204-2ld ts	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x208pro	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance x212-2	scope:	lt	version:	5.2.5	Trust: 1.0
vendor:	siemens	model:	scalance irt	scope:	eq	version:	x202-2<5.5.1	Trust: 0.6
vendor:	siemens	model:	scalance irt	scope:	eq	version:	x204<5.5.1	Trust: 0.6
vendor:	siemens	model:	scalance irt pro	scope:	eq	version:	x204<5.5.1	Trust: 0.6
vendor:	siemens	model:	scalance	scope:	eq	version:	x204-2	Trust: 0.6
vendor:	siemens	model:	scalance x204-2fm	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	scalance xf206-1	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	scalance xf208	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	scalance x204-2ld	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	scalance x204-2ld ts	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	scalance x204-2ts	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	scalance	scope:	eq	version:	x206-1	Trust: 0.6
vendor:	siemens	model:	scalance x206-1ld	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	scalance	scope:	eq	version:	x208	Trust: 0.6
vendor:	siemens	model:	scalance x208pro	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	scalance	scope:	eq	version:	x212-2	Trust: 0.6
vendor:	siemens	model:	scalance x212-2ld	scope:	-	version:	-	Trust: 0.6
vendor:	siemens	model:	scalance	scope:	eq	version:	x216	Trust: 0.6
vendor:	siemens	model:	scalance	scope:	eq	version:	x224	Trust: 0.6
vendor:	siemens	model:	scalance xf204	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2021-28700 // NVD: CVE-2021-25668

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-25668
value:	CRITICAL
Trust: 1.0
CNVD:	CNVD-2021-28700
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202104-975
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202104-988
value:	CRITICAL
Trust: 0.6
VULMON:	CVE-2021-25668
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2021-25668
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.1
CNVD:	CNVD-2021-28700
severity:	HIGH
baseScore:	10.0
vectorString:	AV:N/AC:L/AU:N/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2021-25668
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	5.9
version:	3.1
Trust: 1.0

sources: CNVD: CNVD-2021-28700 // VULMON: CVE-2021-25668 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202104-988 // NVD: CVE-2021-25668

PROBLEMTYPE DATA

problemtype:	CWE-122	Trust: 1.0
problemtype:	CWE-787	Trust: 1.0

sources: NVD: CVE-2021-25668

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202104-988

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202104-975

PATCH

title:	Patch for Siemens SCALANCE X-200 Web Server Heap Buffer Overflow Vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/258416	Trust: 0.6
title:	Siemens Web Server Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=151765	Trust: 0.6
title:	Siemens Security Advisories: Siemens Security Advisory	url:	https://vulmon.com/vendoradvisory?qidtp=siemens_security_advisories&qid=00529a77c6bdb45e00924c587b6c52a5	Trust: 0.1

sources: CNVD: CNVD-2021-28700 // VULMON: CVE-2021-25668 // CNNVD: CNNVD-202104-988

EXTERNAL IDS

db:	SIEMENS	id:	SSA-187092	Trust: 2.3
db:	NVD	id:	CVE-2021-25668	Trust: 2.3
db:	CNVD	id:	CNVD-2021-28700	Trust: 0.6
db:	CS-HELP	id:	SB2021041363	Trust: 0.6
db:	CNNVD	id:	CNNVD-202104-975	Trust: 0.6
db:	CS-HELP	id:	SB2021041413	Trust: 0.6
db:	AUSCERT	id:	ESB-2021.1243	Trust: 0.6
db:	ICS CERT	id:	ICSA-21-103-07	Trust: 0.6
db:	CNNVD	id:	CNNVD-202104-988	Trust: 0.6
db:	VULMON	id:	CVE-2021-25668	Trust: 0.1

sources: CNVD: CNVD-2021-28700 // VULMON: CVE-2021-25668 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202104-988 // NVD: CVE-2021-25668

REFERENCES

url:	https://cert-portal.siemens.com/productcert/pdf/ssa-187092.pdf	Trust: 2.3
url:	https://www.cybersecurity-help.cz/vdb/sb2021041363	Trust: 0.6
url:	https://www.cybersecurity-help.cz/vdb/sb2021041413	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2021.1243	Trust: 0.6
url:	https://us-cert.cisa.gov/ics/advisories/icsa-21-103-07	Trust: 0.6
url:	https://nvd.nist.gov/vuln/detail/cve-2021-25668	Trust: 0.6
url:	https://cwe.mitre.org/data/definitions/122.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1
url:	https://cert-portal.siemens.com/productcert/txt/ssa-187092.txt	Trust: 0.1

sources: CNVD: CNVD-2021-28700 // VULMON: CVE-2021-25668 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202104-988 // NVD: CVE-2021-25668

CREDITS

Siemens reported these vulnerabilities to CISA.

Trust: 0.6

sources: CNNVD: CNNVD-202104-988

SOURCES

db:	CNVD	id:	CNVD-2021-28700
db:	VULMON	id:	CVE-2021-25668
db:	CNNVD	id:	CNNVD-202104-975
db:	CNNVD	id:	CNNVD-202104-988
db:	NVD	id:	CVE-2021-25668

LAST UPDATE DATE

2024-08-14T13:05:44.579000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-28700	date:	2021-04-15T00:00:00
db:	VULMON	id:	CVE-2021-25668	date:	2021-09-14T00:00:00
db:	CNNVD	id:	CNNVD-202104-975	date:	2021-04-14T00:00:00
db:	CNNVD	id:	CNNVD-202104-988	date:	2021-09-15T00:00:00
db:	NVD	id:	CVE-2021-25668	date:	2022-05-01T01:10:56.907

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-28700	date:	2021-04-15T00:00:00
db:	VULMON	id:	CVE-2021-25668	date:	2021-04-22T00:00:00
db:	CNNVD	id:	CNNVD-202104-975	date:	2021-04-13T00:00:00
db:	CNNVD	id:	CNNVD-202104-988	date:	2021-04-13T00:00:00
db:	NVD	id:	CVE-2021-25668	date:	2021-04-22T21:15:10.110