Sign-up

ID

VAR-202112-2056


CVE

CVE-2021-20161


TITLE

Trendnet AC2600 TEW-827DRU  Authentication vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-017222

DESCRIPTION

Trendnet AC2600 TEW-827DRU version 2.08B01 does not have sufficient protections for the UART functionality. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection. No username or password is required and the user is given a root shell with full control of the device. Trendnet AC2600 TEW-827DRU contains an authentication vulnerability and a lack of authentication for critical functionality.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. Trendnet AC2600 TEW-827DRU is a wireless router. A security vulnerability exists in the Trendnet AC2600 TEW-827DRU

Trust: 2.25

sources: NVD: CVE-2021-20161 // JVNDB: JVNDB-2021-017222 // CNVD: CNVD-2022-03203 // VULMON: CVE-2021-20161

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-03203

AFFECTED PRODUCTS

vendor:trendnetmodel:tew-827druscope:eqversion:2.08b01

Trust: 1.0

vendor:trendnetmodel:tew-827druscope:eqversion: -

Trust: 0.8

vendor:trendnetmodel:tew-827druscope:eqversion:tew-827dru firmware 2.08b01

Trust: 0.8

vendor:trendnetmodel:ac2600 tew-827dru 2.08b01scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2022-03203 // JVNDB: JVNDB-2021-017222 // NVD: CVE-2021-20161

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-20161
value: MEDIUM

Trust: 1.0

NVD: CVE-2021-20161
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2022-03203
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202112-2806
value: MEDIUM

Trust: 0.6

VULMON: CVE-2021-20161
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2021-20161
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2022-03203
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-20161
baseSeverity: MEDIUM
baseScore: 6.8
vectorString: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: PHYSICAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 0.9
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: CVE-2021-20161
baseSeverity: MEDIUM
baseScore: 6.8
vectorString: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: PHYSICAL
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-2022-03203 // VULMON: CVE-2021-20161 // JVNDB: JVNDB-2021-017222 // CNNVD: CNNVD-202112-2806 // NVD: CVE-2021-20161

PROBLEMTYPE DATA

problemtype:CWE-306

Trust: 1.0

problemtype:CWE-287

Trust: 1.0

problemtype:Inappropriate authentication (CWE-287) [NVD evaluation ]

Trust: 0.8

problemtype: Lack of authentication for critical features (CWE-306) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-017222 // NVD: CVE-2021-20161

TYPE

access control error

Trust: 0.6

sources: CNNVD: CNNVD-202112-2806

PATCH

title:Top Pageurl:https://www.trendnet.com/

Trust: 0.8

title:Patch for Trendnet AC2600 TEW-827DRU Encryption Issue Vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/313366

Trust: 0.6

title:Trendnet AC2600 Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=176854

Trust: 0.6

sources: CNVD: CNVD-2022-03203 // JVNDB: JVNDB-2021-017222 // CNNVD: CNNVD-202112-2806

EXTERNAL IDS

db:NVDid:CVE-2021-20161

Trust: 3.9

db:TENABLEid:TRA-2021-54

Trust: 3.1

db:JVNDBid:JVNDB-2021-017222

Trust: 0.8

db:CNVDid:CNVD-2022-03203

Trust: 0.6

db:CNNVDid:CNNVD-202112-2806

Trust: 0.6

db:VULMONid:CVE-2021-20161

Trust: 0.1

sources: CNVD: CNVD-2022-03203 // VULMON: CVE-2021-20161 // JVNDB: JVNDB-2021-017222 // CNNVD: CNNVD-202112-2806 // NVD: CVE-2021-20161

REFERENCES

url:https://www.tenable.com/security/research/tra-2021-54

Trust: 3.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-20161

Trust: 1.4

url:https://cwe.mitre.org/data/definitions/326.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: CNVD: CNVD-2022-03203 // VULMON: CVE-2021-20161 // JVNDB: JVNDB-2021-017222 // CNNVD: CNNVD-202112-2806 // NVD: CVE-2021-20161

SOURCES

db:CNVDid:CNVD-2022-03203
db:VULMONid:CVE-2021-20161
db:JVNDBid:JVNDB-2021-017222
db:CNNVDid:CNNVD-202112-2806
db:NVDid:CVE-2021-20161

LAST UPDATE DATE

2024-08-14T13:22:58.273000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-03203date:2022-01-13T00:00:00
db:VULMONid:CVE-2021-20161date:2022-01-07T00:00:00
db:JVNDBid:JVNDB-2021-017222date:2023-01-10T06:58:00
db:CNNVDid:CNNVD-202112-2806date:2022-07-14T00:00:00
db:NVDid:CVE-2021-20161date:2022-07-12T17:42:04.277

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-03203date:2022-01-13T00:00:00
db:VULMONid:CVE-2021-20161date:2021-12-30T00:00:00
db:JVNDBid:JVNDB-2021-017222date:2023-01-10T00:00:00
db:CNNVDid:CNNVD-202112-2806date:2021-12-30T00:00:00
db:NVDid:CVE-2021-20161date:2021-12-30T22:15:09.157