CVE-2021-20161

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.

CVSS v3.0 6.8 MEDIUM
CVSS v2.0 7.2 HIGH

6.8^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.tenable.com/security/research/tra-2021-54	Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:trendnet:tew-827dru_firmware:2.08b01:*:*:*:*:*:*:*

cpe:2.3:h:trendnet:tew-827dru:2.0:*:*:*:*:*:*:*

Information

Published : 2021-12-30 14:15

Updated : 2022-07-12 10:42

NVD link : CVE-2021-20161

Mitre link : CVE-2021-20161

JSON object : View

CWE

CWE-306

Missing Authentication for Critical Function

CWE-287

Improper Authentication

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Products Affected

trendnet

tew-827dru_firmware
tew-827dru

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