Details of VAR-202112-1080

ID

VAR-202112-1080

TITLE

(0Day) D-Link DIR-2055 HNAP Incorrect Comparison Authentication Bypass Vulnerability

Trust: 0.7

sources: ZDI: ZDI-21-1025

DESCRIPTION

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2055 routers. Authentication is not required to exploit this vulnerability.The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of empty passwords. An attacker can leverage this vulnerability to execute arbitrary code on the router. D-Link DIR-2055 is a router device. D-Link DIR-2055 HNAP has a security vulnerability

Trust: 1.17

sources: ZDI: ZDI-21-1025 // CNVD: CNVD-2021-94839

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-94839

AFFECTED PRODUCTS

vendor:

d link

model:

dir-2055

scope:

version:

Trust: 1.3

sources: ZDI: ZDI-21-1025 // CNVD: CNVD-2021-94839

CVSS

SEVERITY

CVSSV2

CVSSV3

ZDI:	ZDI-21-1025
value:	HIGH
Trust: 0.7
CNVD:	CNVD-2021-94839
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2021-94839
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

ZDI:	ZDI-21-1025
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	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: 0.7

sources: ZDI: ZDI-21-1025 // CNVD: CNVD-2021-94839

EXTERNAL IDS

db:	ZDI	id:	ZDI-21-1025	Trust: 1.3
db:	ZDI_CAN	id:	ZDI-CAN-12683	Trust: 0.7
db:	CNVD	id:	CNVD-2021-94839	Trust: 0.6

sources: ZDI: ZDI-21-1025 // CNVD: CNVD-2021-94839

REFERENCES

url:

https://www.zerodayinitiative.com/advisories/zdi-21-1025/

Trust: 0.6

sources: CNVD: CNVD-2021-94839

CREDITS

Anonymous

Trust: 0.7

sources: ZDI: ZDI-21-1025

SOURCES

db:	ZDI	id:	ZDI-21-1025
db:	CNVD	id:	CNVD-2021-94839

LAST UPDATE DATE

2022-05-17T02:05:42.478000+00:00

SOURCES UPDATE DATE

db:	ZDI	id:	ZDI-21-1025	date:	2021-08-26T00:00:00
db:	CNVD	id:	CNVD-2021-94839	date:	2021-12-07T00:00:00

SOURCES RELEASE DATE

db:	ZDI	id:	ZDI-21-1025	date:	2021-08-26T00:00:00
db:	CNVD	id:	CNVD-2021-94839	date:	2021-12-07T00:00:00