Details of VAR-202102-1416

ID

VAR-202102-1416

CVE

CVE-2021-27173

TITLE

FiberHome HG6245D Authentication vulnerability in device

Trust: 0.8

sources: JVNDB: JVNDB-2021-003401

DESCRIPTION

An issue was discovered on FiberHome HG6245D devices through RP2613. There is a telnet?enable=0&key=calculated(BR0_MAC) backdoor API, without authentication, provided by the HTTP server. This will remove firewall rules and allow an attacker to reach the telnet server (used for the CLI). FiberHome HG6245D There is an authentication vulnerability in the device.Information may be tampered with. FiberHome HG6245D devices is a router of China FiberHome. Provide network connectivity function. An authorization issue vulnerability exists in FiberHome HG6245D devices, and an attacker can use the vulnerability to access the telnet server

Trust: 2.16

sources: NVD: CVE-2021-27173 // JVNDB: JVNDB-2021-003401 // CNVD: CNVD-2021-18375

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-18375

AFFECTED PRODUCTS

vendor:	fiberhome	model:	hg6245d	scope:	lte	version:	rp2613	Trust: 1.0
vendor:	fiberhome group	model:	hg6245d	scope:	lte	version:	hg6245d firmware rp2613 until	Trust: 0.8
vendor:	fiberhome group	model:	hg6245d	scope:	eq	version:	-	Trust: 0.8
vendor:	fiberhome	model:	hg6245d devices	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2021-18375 // JVNDB: JVNDB-2021-003401 // NVD: CVE-2021-27173

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-27173
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-27173
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-18375
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202102-1004
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2021-27173
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:P/A:N
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	PARTIAL
availabilityImpact:	NONE
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
CNVD:	CNVD-2021-18375
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:P/A:N
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	PARTIAL
availabilityImpact:	NONE
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-2021-27173
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2021-27173
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2021-18375 // JVNDB: JVNDB-2021-003401 // CNNVD: CNNVD-202102-1004 // NVD: CVE-2021-27173

PROBLEMTYPE DATA

problemtype:	NVD-CWE-Other	Trust: 1.0
problemtype:	Improper authentication (CWE-287) [NVD Evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-003401 // NVD: CVE-2021-27173

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202102-1004

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202102-1004

PATCH

title:	Top Page	url:	http://www.fiberhome.com/default.aspx	Trust: 0.8
title:	Patch for FiberHome HG6245D devices authorization issue vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/253661	Trust: 0.6

sources: CNVD: CNVD-2021-18375 // JVNDB: JVNDB-2021-003401

EXTERNAL IDS

db:	NVD	id:	CVE-2021-27173	Trust: 3.0
db:	JVNDB	id:	JVNDB-2021-003401	Trust: 0.8
db:	CNVD	id:	CNVD-2021-18375	Trust: 0.6
db:	CNNVD	id:	CNNVD-202102-1004	Trust: 0.6

sources: CNVD: CNVD-2021-18375 // JVNDB: JVNDB-2021-003401 // CNNVD: CNNVD-202102-1004 // NVD: CVE-2021-27173

REFERENCES

url:	https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#httpd-infoleak	Trust: 1.8
url:	https://nvd.nist.gov/vuln/detail/cve-2021-27173	Trust: 1.4
url:	https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#	Trust: 1.2
url:	httpd-infoleak	Trust: 0.6

sources: CNVD: CNVD-2021-18375 // JVNDB: JVNDB-2021-003401 // CNNVD: CNNVD-202102-1004 // NVD: CVE-2021-27173

SOURCES

db:	CNVD	id:	CNVD-2021-18375
db:	JVNDB	id:	JVNDB-2021-003401
db:	CNNVD	id:	CNNVD-202102-1004
db:	NVD	id:	CVE-2021-27173

LAST UPDATE DATE

2024-11-23T22:05:14.720000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-18375	date:	2021-03-18T00:00:00
db:	JVNDB	id:	JVNDB-2021-003401	date:	2021-10-26T07:20:00
db:	CNNVD	id:	CNNVD-202102-1004	date:	2022-07-14T00:00:00
db:	NVD	id:	CVE-2021-27173	date:	2024-11-21T05:57:28.530

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-18375	date:	2021-03-18T00:00:00
db:	JVNDB	id:	JVNDB-2021-003401	date:	2021-10-26T00:00:00
db:	CNNVD	id:	CNNVD-202102-1004	date:	2021-02-10T00:00:00
db:	NVD	id:	CVE-2021-27173	date:	2021-02-10T19:15:15.183