Details of VAR-201904-0659

ID

VAR-201904-0659

CVE

CVE-2018-16561

TITLE

SIMATIC S7-300 CPU Resource management vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2018-015286

DESCRIPTION

A vulnerability has been identified in SIMATIC S7-300 CPUs (All versions < V3.X.16). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart. Successful exploitation requires an attacker to be able to send a specially crafted S7 communication packet to a communication interface of the CPU. This includes Ethernet, PROFIBUS, and Multi Point Interfaces (MPI). No user interaction or privileges are required to exploit the security vulnerability. The vulnerability could allow causing a Denial-of-Service condition of the core functionality of the CPU, compromising the availability of the system. At the time of advisory publication no public exploitation of this security vulnerability was known. Siemens confirms the security vulnerability and provides mitigations to resolve the security issue. SIMATIC S7-300 CPU Contains a resource management vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. The Siemens SIMATIC S7-300 CPU is a modular universal controller for the manufacturing industry from Siemens. A denial of service vulnerability exists in the Siemens SIMATIC S7-300 CPU. Remote attackers may exploit this issue to cause denial-of-service conditions, denying service to legitimate users. The vulnerability stems from the failure of the network system or product to properly validate the input data

Trust: 2.7

sources: NVD: CVE-2018-16561 // JVNDB: JVNDB-2018-015286 // CNVD: CNVD-2019-00986 // BID: 107000 // IVD: 7d8409c2-463f-11e9-bb16-000c29342cb1 // VULHUB: VHN-126933

IOT TAXONOMY

category:

['ICS']

sub_category:

Trust: 0.8

sources: IVD: 7d8409c2-463f-11e9-bb16-000c29342cb1 // CNVD: CNVD-2019-00986

AFFECTED PRODUCTS

vendor:	siemens	model:	simatic s7-300	scope:	eq	version:	-	Trust: 1.0
vendor:	siemens	model:	simatic s7-300fs	scope:	eq	version:	-	Trust: 1.0
vendor:	siemens	model:	simatic s7-300t	scope:	eq	version:	-	Trust: 1.0
vendor:	siemens	model:	simatic s7-300f	scope:	eq	version:	-	Trust: 1.0
vendor:	siemens	model:	simatic s7-300	scope:	lt	version:	3.x.16	Trust: 0.8
vendor:	siemens	model:	simatic s7-300f	scope:	lt	version:	3.x.16	Trust: 0.8
vendor:	siemens	model:	simatic s7-300fs	scope:	lt	version:	3.x.16	Trust: 0.8
vendor:	siemens	model:	simatic s7-300t	scope:	lt	version:	3.x.16	Trust: 0.8
vendor:	siemens	model:	simatic s7-300 cpu	scope:	lt	version:	v3.x.16	Trust: 0.6
vendor:	siemens	model:	simatic s7-300 cpu	scope:	eq	version:	0	Trust: 0.3
vendor:	siemens	model:	simatic s7-300 cpu	scope:	ne	version:	v3.x.16	Trust: 0.3
vendor:	simatic s7 300	model:	-	scope:	eq	version:	-	Trust: 0.2
vendor:	simatic s7 300f	model:	-	scope:	eq	version:	-	Trust: 0.2
vendor:	simatic s7 300fs	model:	-	scope:	eq	version:	-	Trust: 0.2
vendor:	simatic s7 300t	model:	-	scope:	eq	version:	-	Trust: 0.2

sources: IVD: 7d8409c2-463f-11e9-bb16-000c29342cb1 // CNVD: CNVD-2019-00986 // BID: 107000 // JVNDB: JVNDB-2018-015286 // NVD: CVE-2018-16561

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-16561
value:	HIGH
Trust: 1.0
NVD:	CVE-2018-16561
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2019-00986
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-201901-309
value:	HIGH
Trust: 0.6
IVD:	7d8409c2-463f-11e9-bb16-000c29342cb1
value:	HIGH
Trust: 0.2
VULHUB:	VHN-126933
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2018-16561
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
CNVD:	CNVD-2019-00986
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6
IVD:	7d8409c2-463f-11e9-bb16-000c29342cb1
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.9 [IVD]
Trust: 0.2
VULHUB:	VHN-126933
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2018-16561
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:	3.9
impactScore:	3.6
version:	3.0
Trust: 1.8

sources: IVD: 7d8409c2-463f-11e9-bb16-000c29342cb1 // CNVD: CNVD-2019-00986 // VULHUB: VHN-126933 // JVNDB: JVNDB-2018-015286 // CNNVD: CNNVD-201901-309 // NVD: CVE-2018-16561

PROBLEMTYPE DATA

problemtype:	NVD-CWE-noinfo	Trust: 1.0
problemtype:	CWE-399	Trust: 0.9

sources: VULHUB: VHN-126933 // JVNDB: JVNDB-2018-015286 // NVD: CVE-2018-16561

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201901-309

TYPE

Resource management error

Trust: 0.8

sources: IVD: 7d8409c2-463f-11e9-bb16-000c29342cb1 // CNNVD: CNNVD-201901-309

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-015286

PATCH

title:	SSA-306710	url:	https://cert-portal.siemens.com/productcert/pdf/ssa-306710.pdf	Trust: 0.8
title:	Patch for Siemens SIMATIC S7-300 CPU Denial of Service Vulnerability (CNVD-2019-00986)	url:	https://www.cnvd.org.cn/patchInfo/show/149567	Trust: 0.6
title:	SIMATIC S7-300 CPUs Security vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=88500	Trust: 0.6

sources: CNVD: CNVD-2019-00986 // JVNDB: JVNDB-2018-015286 // CNNVD: CNNVD-201901-309

EXTERNAL IDS

db:	NVD	id:	CVE-2018-16561	Trust: 3.6
db:	SIEMENS	id:	SSA-306710	Trust: 2.6
db:	ICS CERT	id:	ICSA-19-043-04	Trust: 1.7
db:	BID	id:	107000	Trust: 1.0
db:	CNNVD	id:	CNNVD-201901-309	Trust: 0.9
db:	CNVD	id:	CNVD-2019-00986	Trust: 0.8
db:	JVNDB	id:	JVNDB-2018-015286	Trust: 0.8
db:	AUSCERT	id:	ESB-2019.0446	Trust: 0.6
db:	IVD	id:	7D8409C2-463F-11E9-BB16-000C29342CB1	Trust: 0.2
db:	VULHUB	id:	VHN-126933	Trust: 0.1

sources: IVD: 7d8409c2-463f-11e9-bb16-000c29342cb1 // CNVD: CNVD-2019-00986 // VULHUB: VHN-126933 // BID: 107000 // JVNDB: JVNDB-2018-015286 // CNNVD: CNNVD-201901-309 // NVD: CVE-2018-16561

REFERENCES

url:	https://cert-portal.siemens.com/productcert/pdf/ssa-306710.pdf	Trust: 2.6
url:	https://nvd.nist.gov/vuln/detail/cve-2018-16561	Trust: 1.4
url:	https://ics-cert.us-cert.gov/advisories/icsa-19-043-04	Trust: 0.9
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-16561	Trust: 0.8
url:	https://www.us-cert.gov/ics/advisories/icsa-19-043-04	Trust: 0.8
url:	http://www.securityfocus.com/bid/107000	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/75494	Trust: 0.6
url:	http://www.siemens.com/	Trust: 0.3

sources: CNVD: CNVD-2019-00986 // VULHUB: VHN-126933 // BID: 107000 // JVNDB: JVNDB-2018-015286 // CNNVD: CNNVD-201901-309 // NVD: CVE-2018-16561

CREDITS

China Industrial Control Systems Cyber Emergency Response Team (CIC) ,China Industrial Control Systems Cyber Emergency Response Team,China Industrial Control Systems Cyber Emergency Response Team (CIC) reported this vulnerability to Siemens.

Trust: 0.6

sources: CNNVD: CNNVD-201901-309

SOURCES

db:	IVD	id:	7d8409c2-463f-11e9-bb16-000c29342cb1
db:	CNVD	id:	CNVD-2019-00986
db:	VULHUB	id:	VHN-126933
db:	BID	id:	107000
db:	JVNDB	id:	JVNDB-2018-015286
db:	CNNVD	id:	CNNVD-201901-309
db:	NVD	id:	CVE-2018-16561

LAST UPDATE DATE

2024-11-23T22:45:00.468000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2019-00986	date:	2019-01-10T00:00:00
db:	VULHUB	id:	VHN-126933	date:	2019-10-03T00:00:00
db:	BID	id:	107000	date:	2019-02-12T00:00:00
db:	JVNDB	id:	JVNDB-2018-015286	date:	2019-07-08T00:00:00
db:	CNNVD	id:	CNNVD-201901-309	date:	2019-10-23T00:00:00
db:	NVD	id:	CVE-2018-16561	date:	2024-11-21T03:52:59.010

SOURCES RELEASE DATE

db:	IVD	id:	7d8409c2-463f-11e9-bb16-000c29342cb1	date:	2019-01-10T00:00:00
db:	CNVD	id:	CNVD-2019-00986	date:	2019-01-10T00:00:00
db:	VULHUB	id:	VHN-126933	date:	2019-04-17T00:00:00
db:	BID	id:	107000	date:	2019-02-12T00:00:00
db:	JVNDB	id:	JVNDB-2018-015286	date:	2019-05-20T00:00:00
db:	CNNVD	id:	CNNVD-201901-309	date:	2019-01-10T00:00:00
db:	NVD	id:	CVE-2018-16561	date:	2019-04-17T14:29:03.370