Details of VAR-202012-0217

ID

VAR-202012-0217

CVE

CVE-2020-15796

TITLE

SIMATIC ET 200SP Open Controller and SIMATIC S7-1500 Software Controller Vulnerability regarding uncaught exceptions in

Trust: 0.8

sources: JVNDB: JVNDB-2020-014565

DESCRIPTION

A vulnerability has been identified in SIMATIC ET 200SP Open Controller (incl. SIPLUS variants) (V20.8), SIMATIC S7-1500 Software Controller (V20.8). The web server of the affected products contains a vulnerability that could allow a remote attacker to trigger a denial-of-service condition by sending a specially crafted HTTP request. Siemens SIMATIC Controller Web Servers is a platform of German Siemens (Siemens) that provides Web-side control for Siemens automation products. Siemens SIMATIC Controller Web Servers has a security vulnerability

Trust: 2.16

sources: NVD: CVE-2020-15796 // JVNDB: JVNDB-2020-014565 // CNVD: CNVD-2020-70925

IOT TAXONOMY

category:

['ICS']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-70925

AFFECTED PRODUCTS

vendor:	siemens	model:	simatic s7-1500 software controller	scope:	lte	version:	20.8	Trust: 1.0
vendor:	siemens	model:	simatic et 200sp open controller	scope:	lte	version:	20.8	Trust: 1.0
vendor:	シーメンス	model:	simatic s7-1500 software controller	scope:	-	version:	-	Trust: 0.8
vendor:	シーメンス	model:	simatic et 200sp open controller	scope:	-	version:	-	Trust: 0.8
vendor:	siemens	model:	simatic et 200sp open controller	scope:	eq	version:	v20.8	Trust: 0.6
vendor:	siemens	model:	simatic s7-1500 software controller	scope:	eq	version:	v20.8	Trust: 0.6

sources: CNVD: CNVD-2020-70925 // JVNDB: JVNDB-2020-014565 // NVD: CVE-2020-15796

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2020-15796
value:	HIGH
Trust: 1.0
NVD:	CVE-2020-15796
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2020-70925
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202012-701
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2020-15796
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: 1.8
CNVD:	CNVD-2020-70925
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: 0.6

nvd@nist.gov:	CVE-2020-15796
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-2020-15796
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: CNVD: CNVD-2020-70925 // JVNDB: JVNDB-2020-014565 // CNNVD: CNNVD-202012-701 // NVD: CVE-2020-15796

PROBLEMTYPE DATA

problemtype:	CWE-248	Trust: 1.0
problemtype:	Uncaught exception (CWE-248) [ Other ]	Trust: 0.8

sources: JVNDB: JVNDB-2020-014565 // NVD: CVE-2020-15796

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202012-701

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202012-701

PATCH

title:	SSA-700697	url:	https://cert-portal.siemens.com/productcert/pdf/ssa-700697.pdf	Trust: 0.8
title:	Patch for Siemens SIMATIC Controller Web Servers Denial of Service Vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/241945	Trust: 0.6
title:	Siemens SIMATIC Controller Web Servers Security vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=137666	Trust: 0.6

sources: CNVD: CNVD-2020-70925 // JVNDB: JVNDB-2020-014565 // CNNVD: CNNVD-202012-701

EXTERNAL IDS

db:	NVD	id:	CVE-2020-15796	Trust: 3.0
db:	SIEMENS	id:	SSA-700697	Trust: 1.6
db:	ICS CERT	id:	ICSA-20-343-09	Trust: 1.2
db:	JVN	id:	JVNVU90453244	Trust: 0.8
db:	JVNDB	id:	JVNDB-2020-014565	Trust: 0.8
db:	CNVD	id:	CNVD-2020-70925	Trust: 0.6
db:	AUSCERT	id:	ESB-2020.4359	Trust: 0.6
db:	CNNVD	id:	CNNVD-202012-701	Trust: 0.6

sources: CNVD: CNVD-2020-70925 // JVNDB: JVNDB-2020-014565 // CNNVD: CNNVD-202012-701 // NVD: CVE-2020-15796

REFERENCES

url:	https://cert-portal.siemens.com/productcert/pdf/ssa-700697.pdf	Trust: 1.6
url:	https://nvd.nist.gov/vuln/detail/cve-2020-15796	Trust: 1.4
url:	https://us-cert.cisa.gov/ics/advisories/icsa-20-343-09	Trust: 1.2
url:	https://jvn.jp/vu/jvnvu90453244/index.html	Trust: 0.8
url:	https://vigilance.fr/vulnerability/siemens-simatic-denial-of-service-via-http-request-34071	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2020.4359/	Trust: 0.6

sources: CNVD: CNVD-2020-70925 // JVNDB: JVNDB-2020-014565 // CNNVD: CNNVD-202012-701 // NVD: CVE-2020-15796

SOURCES

db:	CNVD	id:	CNVD-2020-70925
db:	JVNDB	id:	JVNDB-2020-014565
db:	CNNVD	id:	CNNVD-202012-701
db:	NVD	id:	CVE-2020-15796

LAST UPDATE DATE

2024-08-14T12:56:22.495000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-70925	date:	2020-12-12T00:00:00
db:	JVNDB	id:	JVNDB-2020-014565	date:	2021-08-25T03:05:00
db:	CNNVD	id:	CNNVD-202012-701	date:	2020-12-24T00:00:00
db:	NVD	id:	CVE-2020-15796	date:	2020-12-18T02:35:45.847

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-70925	date:	2020-12-12T00:00:00
db:	JVNDB	id:	JVNDB-2020-014565	date:	2021-08-25T00:00:00
db:	CNNVD	id:	CNNVD-202012-701	date:	2020-12-08T00:00:00
db:	NVD	id:	CVE-2020-15796	date:	2020-12-14T21:15:19.440