Details of VAR-201803-1431

ID

VAR-201803-1431

CVE

CVE-2018-0521

TITLE

Multiple vulnerabilities in WXR-1900DHP2

Trust: 0.8

sources: JVNDB: JVNDB-2018-000017

DESCRIPTION

Buffalo WXR-1900DHP2 firmware Ver.2.48 and earlier allows an attacker to bypass authentication and execute arbitrary commands on the device via unspecified vectors. WXR-1900DHP2 provided by BUFFALO INC. is a wireless LAN router. WXR-1900DHP2 contains multiple vulnerabilities listed below. * Missing Authentication for Critical Function (CWE-306) - CVE-2018-0521 * Buffer Overflow (CWE-119) - CVE-2018-0522 * OS Command Injection (CWE-78) - CVE-2018-0523 Taizoh Tsukamoto of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.The possible impact of each vulnerability is as follows: * A user with access to the network that is connected to the affected device may execute an arbitrary command on the device - CVE-2018-0521 * If a user views a specially crafted file while logged into the affected device, arbitrary code may be executed - CVE-2018-0522 * A user with access to the network that is connected to the affected device may execute an arbitrary command on the device - CVE-2018-0523

Trust: 2.25

sources: NVD: CVE-2018-0521 // JVNDB: JVNDB-2018-000017 // CNVD: CNVD-2018-03617 // VULHUB: VHN-118723

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2018-03617

AFFECTED PRODUCTS

vendor:	buffalo	model:	wxr-1900dhp2	scope:	lte	version:	2.48	Trust: 1.0
vendor:	buffalo	model:	wxr-1900dhp2	scope:	lte	version:	firmware ver.2.48	Trust: 0.8
vendor:	buffalo	model:	wxr-1900dhp2 <=ver.2.48	scope:	-	version:	-	Trust: 0.6
vendor:	buffalo	model:	wxr-1900dhp2	scope:	eq	version:	2.48	Trust: 0.6

sources: CNVD: CNVD-2018-03617 // JVNDB: JVNDB-2018-000017 // CNNVD: CNNVD-201803-320 // NVD: CVE-2018-0521

CVSS

SEVERITY

CVSSV2

CVSSV3

IPA:	JVNDB-2018-000017
value:	MEDIUM
Trust: 1.6
nvd@nist.gov:	CVE-2018-0521
value:	HIGH
Trust: 1.0
IPA:	JVNDB-2018-000017
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2018-03617
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-201803-320
value:	HIGH
Trust: 0.6
VULHUB:	VHN-118723
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2018-0521
severity:	HIGH
baseScore:	8.3
vectorString:	AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	6.5
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
IPA:	JVNDB-2018-000017
severity:	HIGH
baseScore:	8.3
vectorString:	AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector:	ADJACENT NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
IPA:	JVNDB-2018-000017
severity:	MEDIUM
baseScore:	5.4
vectorString:	AV:A/AC:M/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
IPA:	JVNDB-2018-000017
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
CNVD:	CNVD-2018-03617
severity:	HIGH
baseScore:	8.3
vectorString:	AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	6.5
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6
VULHUB:	VHN-118723
severity:	HIGH
baseScore:	8.3
vectorString:	AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	6.5
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2018-0521
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.0
Trust: 1.0
IPA:	JVNDB-2018-000017
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT 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
IPA:	JVNDB-2018-000017
baseSeverity:	MEDIUM
baseScore:	5.0
vectorString:	CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
attackVector:	ADJACENT NETWORK
attackComplexity:	HIGH
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	LOW
availabilityImpact:	LOW
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8
IPA:	JVNDB-2018-000017
baseSeverity:	MEDIUM
baseScore:	6.3
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	LOW
integrityImpact:	LOW
availabilityImpact:	LOW
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2018-03617 // VULHUB: VHN-118723 // JVNDB: JVNDB-2018-000017 // JVNDB: JVNDB-2018-000017 // JVNDB: JVNDB-2018-000017 // CNNVD: CNNVD-201803-320 // NVD: CVE-2018-0521

PROBLEMTYPE DATA

problemtype:	CWE-306	Trust: 1.1
problemtype:	CWE-78	Trust: 0.8
problemtype:	CWE-119	Trust: 0.8
problemtype:	CWE-287	Trust: 0.8

sources: VULHUB: VHN-118723 // JVNDB: JVNDB-2018-000017 // NVD: CVE-2018-0521

THREAT TYPE

specific network environment

Trust: 0.6

sources: CNNVD: CNNVD-201803-320

TYPE

lack of information

Trust: 0.6

sources: CNNVD: CNNVD-201803-320

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-000017

PATCH

title:	BUFFALO INC. website	url:	http://buffalo.jp/support_s/s20180223.html	Trust: 0.8
title:	Patch for the BUFFALOWXR-1900DHP2 authentication vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/119021	Trust: 0.6
title:	Buffalo WXR-1900DHP2 Security vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=79040	Trust: 0.6

sources: CNVD: CNVD-2018-03617 // JVNDB: JVNDB-2018-000017 // CNNVD: CNNVD-201803-320

EXTERNAL IDS

db:	NVD	id:	CVE-2018-0521	Trust: 3.1
db:	JVN	id:	JVN97144273	Trust: 3.1
db:	JVNDB	id:	JVNDB-2018-000017	Trust: 0.8
db:	CNVD	id:	CNVD-2018-03617	Trust: 0.6
db:	CNNVD	id:	CNNVD-201803-320	Trust: 0.6
db:	VULHUB	id:	VHN-118723	Trust: 0.1

sources: CNVD: CNVD-2018-03617 // VULHUB: VHN-118723 // JVNDB: JVNDB-2018-000017 // CNNVD: CNNVD-201803-320 // NVD: CVE-2018-0521

REFERENCES

url:	https://jvn.jp/en/jp/jvn97144273/index.html	Trust: 2.5
url:	http://buffalo.jp/support_s/s20180223.html	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-0521	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-0522	Trust: 0.8
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-0523	Trust: 0.8
url:	https://nvd.nist.gov/vuln/detail/cve-2018-0521	Trust: 0.8
url:	https://nvd.nist.gov/vuln/detail/cve-2018-0522	Trust: 0.8
url:	https://nvd.nist.gov/vuln/detail/cve-2018-0523	Trust: 0.8
url:	https://jvn.jp/en/jp/jvn97144273/	Trust: 0.6

sources: CNVD: CNVD-2018-03617 // VULHUB: VHN-118723 // JVNDB: JVNDB-2018-000017 // CNNVD: CNNVD-201803-320 // NVD: CVE-2018-0521

SOURCES

db:	CNVD	id:	CNVD-2018-03617
db:	VULHUB	id:	VHN-118723
db:	JVNDB	id:	JVNDB-2018-000017
db:	CNNVD	id:	CNNVD-201803-320
db:	NVD	id:	CVE-2018-0521

LAST UPDATE DATE

2024-11-23T21:39:32.233000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2018-03617	date:	2018-02-27T00:00:00
db:	VULHUB	id:	VHN-118723	date:	2018-03-26T00:00:00
db:	JVNDB	id:	JVNDB-2018-000017	date:	2018-06-14T00:00:00
db:	CNNVD	id:	CNNVD-201803-320	date:	2018-03-13T00:00:00
db:	NVD	id:	CVE-2018-0521	date:	2024-11-21T03:38:24.250

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2018-03617	date:	2018-02-27T00:00:00
db:	VULHUB	id:	VHN-118723	date:	2018-03-09T00:00:00
db:	JVNDB	id:	JVNDB-2018-000017	date:	2018-02-26T00:00:00
db:	CNNVD	id:	CNNVD-201803-320	date:	2018-03-13T00:00:00
db:	NVD	id:	CVE-2018-0521	date:	2018-03-09T16:29:00.410