Details of VAR-201912-0778

ID

VAR-201912-0778

CVE

CVE-2019-5079

TITLE

WAGO PFC 200 and PFC100 Firmware out-of-bounds vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2019-013722

DESCRIPTION

An exploitable heap buffer overflow vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause a heap buffer overflow, potentially resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability. WAGO PFC 200 and PFC100 The firmware contains an out-of-bounds write vulnerability for a critical function.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. WAGO PFC200 is a programmable logic controller (PLC) from the German company WAGO. WAGO PFC200 has a buffer overflow vulnerability. The vulnerability originates from a network system or product that incorrectly validates data boundaries when performing operations on memory, causing incorrect read and write operations to be performed on other associated memory locations

Trust: 2.34

sources: NVD: CVE-2019-5079 // JVNDB: JVNDB-2019-013722 // CNVD: CNVD-2019-46395 // IVD: 370be516-5627-47d6-9e74-a8561eee7d4d

IOT TAXONOMY

category:	['ICS', 'Network device']	sub_category:	-	Trust: 0.6
category:	['ICS']	sub_category:	-	Trust: 0.2

sources: IVD: 370be516-5627-47d6-9e74-a8561eee7d4d // CNVD: CNVD-2019-46395

AFFECTED PRODUCTS

vendor:	wago	model:	pfc200	scope:	eq	version:	03.01.07(13)	Trust: 1.4
vendor:	wago	model:	pfc200	scope:	eq	version:	03.00.39(12)	Trust: 1.4
vendor:	wago	model:	pfc100	scope:	eq	version:	03.00.39(12)	Trust: 1.4
vendor:	wago	model:	pfc 100	scope:	eq	version:	03.00.39\(12\)	Trust: 1.0
vendor:	wago	model:	pfc 200	scope:	eq	version:	03.00.39\(12\)	Trust: 1.0
vendor:	wago	model:	pfc 200	scope:	eq	version:	03.01.07\(13\)	Trust: 1.0
vendor:	pfc 200	model:	-	scope:	eq	version:	03.00.39(12)	Trust: 0.2
vendor:	pfc 200	model:	-	scope:	eq	version:	03.01.07(13)	Trust: 0.2
vendor:	pfc 100	model:	-	scope:	eq	version:	03.00.39(12)	Trust: 0.2

sources: IVD: 370be516-5627-47d6-9e74-a8561eee7d4d // CNVD: CNVD-2019-46395 // JVNDB: JVNDB-2019-013722 // NVD: CVE-2019-5079

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2019-5079
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2019-5079
value:	CRITICAL
Trust: 0.8
CNVD:	CNVD-2019-46395
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-201912-739
value:	CRITICAL
Trust: 0.6
IVD:	370be516-5627-47d6-9e74-a8561eee7d4d
value:	CRITICAL
Trust: 0.2

nvd@nist.gov:	CVE-2019-5079
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: 1.8
CNVD:	CNVD-2019-46395
severity:	HIGH
baseScore:	9.4
vectorString:	AV:N/AC:L/AU:N/C:N/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	9.2
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6
IVD:	370be516-5627-47d6-9e74-a8561eee7d4d
severity:	HIGH
baseScore:	9.4
vectorString:	AV:N/AC:L/AU:N/C:N/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	9.2
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.9 [IVD]
Trust: 0.2

nvd@nist.gov:	CVE-2019-5079
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
NVD:	CVE-2019-5079
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.0/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:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: IVD: 370be516-5627-47d6-9e74-a8561eee7d4d // CNVD: CNVD-2019-46395 // JVNDB: JVNDB-2019-013722 // CNNVD: CNNVD-201912-739 // NVD: CVE-2019-5079

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2019-013722 // NVD: CVE-2019-5079

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201912-739

TYPE

Buffer error

Trust: 0.8

sources: IVD: 370be516-5627-47d6-9e74-a8561eee7d4d // CNNVD: CNNVD-201912-739

CONFIGURATIONS

sources: JVNDB: JVNDB-2019-013722

PATCH

title:	Top Page	url:	https://www.wago.com/us/	Trust: 0.8
title:	WAGO PFC 200 and WAGO PFC100 Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=105556	Trust: 0.6

sources: JVNDB: JVNDB-2019-013722 // CNNVD: CNNVD-201912-739

EXTERNAL IDS

db:	NVD	id:	CVE-2019-5079	Trust: 3.2
db:	TALOS	id:	TALOS-2019-0871	Trust: 3.0
db:	CNVD	id:	CNVD-2019-46395	Trust: 0.8
db:	CNNVD	id:	CNNVD-201912-739	Trust: 0.8
db:	JVNDB	id:	JVNDB-2019-013722	Trust: 0.8
db:	ICS CERT	id:	ICSA-20-065-01	Trust: 0.6
db:	AUSCERT	id:	ESB-2020.0842	Trust: 0.6
db:	IVD	id:	370BE516-5627-47D6-9E74-A8561EEE7D4D	Trust: 0.2

sources: IVD: 370be516-5627-47d6-9e74-a8561eee7d4d // CNVD: CNVD-2019-46395 // JVNDB: JVNDB-2019-013722 // CNNVD: CNNVD-201912-739 // NVD: CVE-2019-5079

REFERENCES

url:	https://talosintelligence.com/vulnerability_reports/talos-2019-0871	Trust: 1.8
url:	https://nvd.nist.gov/vuln/detail/cve-2019-5079	Trust: 1.4
url:	https://www.talosintelligence.com/vulnerability_reports/talos-2019-0871	Trust: 1.2
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-5079	Trust: 0.8
url:	https://www.us-cert.gov/ics/advisories/icsa-20-065-01	Trust: 0.6
url:	https://www.auscert.org.au/bulletins/esb-2020.0842/	Trust: 0.6

sources: CNVD: CNVD-2019-46395 // JVNDB: JVNDB-2019-013722 // CNNVD: CNNVD-201912-739 // NVD: CVE-2019-5079

CREDITS

Discovered by Kelly Leuschner of Cisco Talos

Trust: 0.6

sources: CNNVD: CNNVD-201912-739

SOURCES

db:	IVD	id:	370be516-5627-47d6-9e74-a8561eee7d4d
db:	CNVD	id:	CNVD-2019-46395
db:	JVNDB	id:	JVNDB-2019-013722
db:	CNNVD	id:	CNNVD-201912-739
db:	NVD	id:	CVE-2019-5079

LAST UPDATE DATE

2024-11-23T21:51:49.341000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2019-46395	date:	2019-12-20T00:00:00
db:	JVNDB	id:	JVNDB-2019-013722	date:	2020-01-15T00:00:00
db:	CNNVD	id:	CNNVD-201912-739	date:	2020-06-16T00:00:00
db:	NVD	id:	CVE-2019-5079	date:	2024-11-21T04:44:18.630

SOURCES RELEASE DATE

db:	IVD	id:	370be516-5627-47d6-9e74-a8561eee7d4d	date:	2019-12-20T00:00:00
db:	CNVD	id:	CNVD-2019-46395	date:	2019-12-20T00:00:00
db:	JVNDB	id:	JVNDB-2019-013722	date:	2020-01-15T00:00:00
db:	CNNVD	id:	CNNVD-201912-739	date:	2019-12-16T00:00:00
db:	NVD	id:	CVE-2019-5079	date:	2019-12-18T21:15:14.163