CVE-2022-29402

Severity Score

6.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers to connect to the UART port via a serial connection and execute commands as the root user without authentication.

Se ha detectado que TP-Link TL-WR840N EU versión v6.20, contiene protecciones no seguras para su consola UART. Esta vulnerabilidad permite a atacantes conectarse al puerto UART por medio de una conexión serial y ejecutar comandos como usuario root sin autenticación

*Credits: N/A

CVSS Scores

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-04-16 CVE Reserved
2022-05-25 CVE Published
2023-12-16 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-306: Missing Authentication for Critical Function

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html	2024-08-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Tp-link Search vendor "Tp-link"	Tl-wr840n Firmware Search vendor "Tp-link" for product "Tl-wr840n Firmware"	-	-	Affected	in	Tp-link Search vendor "Tp-link"	Tl-wr840n Search vendor "Tp-link" for product "Tl-wr840n"	6.20 Search vendor "Tp-link" for product "Tl-wr840n" and version "6.20"	-	Safe
Tp-link Search vendor "Tp-link"	Tl-wr840n Firmware Search vendor "Tp-link" for product "Tl-wr840n Firmware"	-	-	Affected	in	Tp-link Search vendor "Tp-link"	Tl-wr840n Search vendor "Tp-link" for product "Tl-wr840n"	5.0 Search vendor "Tp-link" for product "Tl-wr840n" and version "5.0"	-	Safe