CVE-2021-20161
Severity Score
6.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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 versión 2.08B01, no presenta suficientes protecciones para la funcionalidad UART. Un actor malicioso con acceso físico al dispositivo es capaz de conectarse al puerto UART por medio de una conexión serial. No se requiere ningún nombre de usuario o contraseña y el usuario recibe un shell de root con control total del dispositivo.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-12-17 CVE Reserved
- 2021-12-30 CVE Published
- 2024-08-03 CVE Updated
- 2024-09-14 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-287: Improper Authentication
- CWE-306: Missing Authentication for Critical Function
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://www.tenable.com/security/research/tra-2021-54 | Third Party Advisory |
| URL | Date | SRC |
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| URL | Date | SRC |
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| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Trendnet Search vendor "Trendnet" | Tew-827dru Firmware Search vendor "Trendnet" for product "Tew-827dru Firmware" | 2.08b01 Search vendor "Trendnet" for product "Tew-827dru Firmware" and version "2.08b01" | - |
Affected
| in | Trendnet Search vendor "Trendnet" | Tew-827dru Search vendor "Trendnet" for product "Tew-827dru" | 2.0 Search vendor "Trendnet" for product "Tew-827dru" and version "2.0" | - |
Safe
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