Details of VAR-201809-1060

ID

VAR-201809-1060

CVE

CVE-2018-3873

TITLE

Samsung SmartThings Hub STH-ETH-250-Firmware Buffer error vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2018-010106

DESCRIPTION

An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The strncpy overflows the destination buffer, which has a size of 128 bytes. An attacker can send an arbitrarily long "secretKey" value in order to exploit this vulnerability. Samsung SmartThings Hub STH-ETH-250-Firmware Contains a buffer error vulnerability.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. SamsungSmartThingsHub is a smart home management device from South Korea's Samsung. video-coreHTTPserver is one of the HTTP servers. This vulnerability stems from the fact that the video-core process failed to properly extract the fields in the JSON payload controlled by the user

Trust: 2.34

sources: NVD: CVE-2018-3873 // JVNDB: JVNDB-2018-010106 // CNVD: CNVD-2018-15900 // VULHUB: VHN-133904 // VULMON: CVE-2018-3873

IOT TAXONOMY

category:	['Network device']	sub_category:	-	Trust: 0.6
category:	['home & office device']	sub_category:	smart home device	Trust: 0.1
category:	['home & office device']	sub_category:	smart home controller	Trust: 0.1

sources: OTHER: None // CNVD: CNVD-2018-15900

AFFECTED PRODUCTS

vendor:	samsung	model:	sth-eth-250	scope:	eq	version:	0.20.17	Trust: 1.6
vendor:	samsung	model:	smartthings hub sth-eth-250	scope:	eq	version:	0.20.17	Trust: 0.8
vendor:	samsung	model:	smartthings hub video-core http server	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2018-15900 // JVNDB: JVNDB-2018-010106 // CNNVD: CNNVD-201807-1948 // NVD: CVE-2018-3873

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-3873
value:	CRITICAL
Trust: 1.0
talos-cna@cisco.com:	CVE-2018-3873
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2018-3873
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2018-15900
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-201807-1948
value:	CRITICAL
Trust: 0.6
VULHUB:	VHN-133904
value:	HIGH
Trust: 0.1
VULMON:	CVE-2018-3873
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2018-3873
severity:	HIGH
baseScore:	9.0
vectorString:	AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	8.0
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9
CNVD:	CNVD-2018-15900
severity:	HIGH
baseScore:	9.0
vectorString:	AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	8.0
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6
VULHUB:	VHN-133904
severity:	HIGH
baseScore:	9.0
vectorString:	AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	8.0
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2018-3873
baseSeverity:	CRITICAL
baseScore:	9.9
vectorString:	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.1
impactScore:	6.0
version:	3.1
Trust: 1.0
talos-cna@cisco.com:	CVE-2018-3873
baseSeverity:	CRITICAL
baseScore:	9.9
vectorString:	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.1
impactScore:	6.0
version:	3.0
Trust: 1.0
NVD:	CVE-2018-3873
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2018-15900 // VULHUB: VHN-133904 // VULMON: CVE-2018-3873 // JVNDB: JVNDB-2018-010106 // CNNVD: CNNVD-201807-1948 // NVD: CVE-2018-3873 // NVD: CVE-2018-3873

PROBLEMTYPE DATA

problemtype:

CWE-119

Trust: 1.9

sources: VULHUB: VHN-133904 // JVNDB: JVNDB-2018-010106 // NVD: CVE-2018-3873

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201807-1948

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-201807-1948

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-010106

PATCH

title:	SmartThings Hub	url:	https://www.smartthings.com/products/smartthings-hub	Trust: 0.8
title:	Patch for SamsungSmartThingsHubvideo-coreHTTP Server Buffer Overflow Vulnerability (CNVD-2018-15900)	url:	https://www.cnvd.org.cn/patchInfo/show/138007	Trust: 0.6
title:	Samsung SmartThings Hub video-core HTTP Server Buffer Error Vulnerability Fix	url:	http://123.124.177.30/web/xxk/bdxqById.tag?id=82687	Trust: 0.6

sources: CNVD: CNVD-2018-15900 // JVNDB: JVNDB-2018-010106 // CNNVD: CNNVD-201807-1948

EXTERNAL IDS

db:	NVD	id:	CVE-2018-3873	Trust: 3.3
db:	TALOS	id:	TALOS-2018-0555	Trust: 3.2
db:	JVNDB	id:	JVNDB-2018-010106	Trust: 0.8
db:	CNNVD	id:	CNNVD-201807-1948	Trust: 0.7
db:	CNVD	id:	CNVD-2018-15900	Trust: 0.6
db:	OTHER	id:	NONE	Trust: 0.1
db:	VULHUB	id:	VHN-133904	Trust: 0.1
db:	VULMON	id:	CVE-2018-3873	Trust: 0.1

sources: OTHER: None // CNVD: CNVD-2018-15900 // VULHUB: VHN-133904 // VULMON: CVE-2018-3873 // JVNDB: JVNDB-2018-010106 // CNNVD: CNNVD-201807-1948 // NVD: CVE-2018-3873

REFERENCES

url:	https://talosintelligence.com/vulnerability_reports/talos-2018-0555	Trust: 2.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-3873	Trust: 0.8
url:	https://nvd.nist.gov/vuln/detail/cve-2018-3873	Trust: 0.8
url:	https://www.talosintelligence.com/vulnerability_reports/talos-2018-0555	Trust: 0.6
url:	https://ieeexplore.ieee.org/abstract/document/10769424	Trust: 0.1
url:	https://cwe.mitre.org/data/definitions/119.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: OTHER: None // CNVD: CNVD-2018-15900 // VULHUB: VHN-133904 // VULMON: CVE-2018-3873 // JVNDB: JVNDB-2018-010106 // CNNVD: CNNVD-201807-1948 // NVD: CVE-2018-3873

CREDITS

Discovered by Claudio Bozzato of Cisco Talos

Trust: 0.6

sources: CNNVD: CNNVD-201807-1948

SOURCES

db:	OTHER	id:	-
db:	CNVD	id:	CNVD-2018-15900
db:	VULHUB	id:	VHN-133904
db:	VULMON	id:	CVE-2018-3873
db:	JVNDB	id:	JVNDB-2018-010106
db:	CNNVD	id:	CNNVD-201807-1948
db:	NVD	id:	CVE-2018-3873

LAST UPDATE DATE

2025-01-30T20:21:11.507000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2018-15900	date:	2018-08-22T00:00:00
db:	VULHUB	id:	VHN-133904	date:	2018-11-09T00:00:00
db:	VULMON	id:	CVE-2018-3873	date:	2023-05-19T00:00:00
db:	JVNDB	id:	JVNDB-2018-010106	date:	2018-12-05T00:00:00
db:	CNNVD	id:	CNNVD-201807-1948	date:	2023-05-22T00:00:00
db:	NVD	id:	CVE-2018-3873	date:	2024-11-21T04:06:12.757

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2018-15900	date:	2018-08-22T00:00:00
db:	VULHUB	id:	VHN-133904	date:	2018-09-21T00:00:00
db:	VULMON	id:	CVE-2018-3873	date:	2018-09-21T00:00:00
db:	JVNDB	id:	JVNDB-2018-010106	date:	2018-12-05T00:00:00
db:	CNNVD	id:	CNNVD-201807-1948	date:	2018-07-30T00:00:00
db:	NVD	id:	CVE-2018-3873	date:	2018-09-21T14:29:00.270