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ID

VAR-202004-1872


CVE

CVE-2020-9277


TITLE

D-Link DSL-2640B B2 Authentication vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2020-004759

DESCRIPTION

An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. Authentication can be bypassed when accessing cgi modules. This allows one to perform administrative tasks (e.g., modify the admin password) with no authentication. D-Link DSL-2640B B2 There is an authentication vulnerability in the device.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. D-Link DSL-2640B B2 is a wireless router from D-Link, Taiwan. There is a security vulnerability in the D-Link DSL-2640B B2 EU_4.01B version. An attacker can use the vulnerability by accessing the cgi module to bypass authentication and perform management operations (such as changing the administrator password)

Trust: 2.16

sources: NVD: CVE-2020-9277 // JVNDB: JVNDB-2020-004759 // CNVD: CNVD-2020-27251

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2020-27251

AFFECTED PRODUCTS

vendor:dlinkmodel:dsl-2640bscope:eqversion:eu_4.01b

Trust: 1.0

vendor:d linkmodel:dsl-2640bscope:eqversion:eu_4.01b

Trust: 0.8

vendor:d linkmodel:dsl-2640b b2 eu 4.01bscope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2020-27251 // JVNDB: JVNDB-2020-004759 // NVD: CVE-2020-9277

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-9277
value: CRITICAL

Trust: 1.0

NVD: JVNDB-2020-004759
value: CRITICAL

Trust: 0.8

CNVD: CNVD-2020-27251
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202004-1668
value: CRITICAL

Trust: 0.6

nvd@nist.gov: CVE-2020-9277
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: 1.0

NVD: JVNDB-2020-004759
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: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

CNVD: CNVD-2020-27251
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: 0.6

nvd@nist.gov: CVE-2020-9277
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: JVNDB-2020-004759
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: CNVD: CNVD-2020-27251 // JVNDB: JVNDB-2020-004759 // CNNVD: CNNVD-202004-1668 // NVD: CVE-2020-9277

PROBLEMTYPE DATA

problemtype:CWE-287

Trust: 1.8

sources: JVNDB: JVNDB-2020-004759 // NVD: CVE-2020-9277

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202004-1668

TYPE

authorization issue

Trust: 0.6

sources: CNNVD: CNNVD-202004-1668

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2020-004759

PATCH
title:Security Bulletinurl:https://www.dlink.com/en/security-bulletin
Trust: 0.8
sources:
            
            
            JVNDB: JVNDB-2020-004759

EXTERNAL IDS
db:NVDid:CVE-2020-9277
Trust: 3.0
db:JVNDBid:JVNDB-2020-004759
Trust: 0.8
db:CNVDid:CNVD-2020-27251
Trust: 0.6
db:CNNVDid:CNNVD-202004-1668
Trust: 0.6
sources:
            
            
            CNVD: CNVD-2020-27251 // 
            
            
            
            JVNDB: JVNDB-2020-004759 // 
            
            
            
            CNNVD: CNNVD-202004-1668 // 
            
            
            
            NVD: CVE-2020-9277

REFERENCES
url:https://raelize.com/posts/d-link-dsl-2640b-security-advisories/
Trust: 2.4
url:https://nvd.nist.gov/vuln/detail/cve-2020-9277
Trust: 2.0
url:https://raelize.com/advisories/cve-2020-9277_d-link-dsl-2640b_cgi-authentication-bypass_v1.0.txt
Trust: 1.6
url:https://www.dlink.com/en/security-bulletin
Trust: 1.6
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-9277
Trust: 0.8
sources:
            
            
            CNVD: CNVD-2020-27251 // 
            
            
            
            JVNDB: JVNDB-2020-004759 // 
            
            
            
            CNNVD: CNNVD-202004-1668 // 
            
            
            
            NVD: CVE-2020-9277

SOURCES
db:CNVDid:CNVD-2020-27251
db:JVNDBid:JVNDB-2020-004759
db:CNNVDid:CNNVD-202004-1668
db:NVDid:CVE-2020-9277

LAST UPDATE DATE
2024-11-23T22:29:38.532000+00:00

SOURCES UPDATE DATE
db:CNVDid:CNVD-2020-27251date:2020-05-09T00:00:00
db:JVNDBid:JVNDB-2020-004759date:2020-05-27T00:00:00
db:CNNVDid:CNNVD-202004-1668date:2020-04-29T00:00:00
db:NVDid:CVE-2020-9277date:2024-11-21T05:40:20.367

SOURCES RELEASE DATE
db:CNVDid:CNVD-2020-27251date:2020-05-09T00:00:00
db:JVNDBid:JVNDB-2020-004759date:2020-05-27T00:00:00
db:CNNVDid:CNNVD-202004-1668date:2020-04-20T00:00:00
db:NVDid:CVE-2020-9277date:2020-04-20T23:15:12.707