CVE-2022-29402

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.

CVSS v3 6.8 MEDIUM
CVSS v2.0 7.2 HIGH

6.8^/10

CVSS v3 : 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://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tp-link:tl-wr840n_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:tp-link:tl-wr840n:6.20:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:tp-link:tl-wr840n_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:tp-link:tl-wr840n:5.0:*:*:*:*:*:*:*

History

07 Jun 2022, 16:23

Type	Values Removed	Values Added
CWE		CWE-306
First Time		Tp-link Tp-link tl-wr840n Firmware Tp-link tl-wr840n
References	~~(MISC) https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html -~~	(MISC) https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html - Exploit, Third Party Advisory
CPE		cpe:2.3:h:tp-link:tl-wr840n:6.20:::::::* cpe:2.3:h:tp-link:tl-wr840n:5.0:::::::* cpe:2.3:o:tp-link:tl-wr840n_firmware:-:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.2 v3 : 6.8

25 May 2022, 18:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-05-25 18:15

Updated : 2023-12-10 14:22

NVD link : CVE-2022-29402

Mitre link : CVE-2022-29402

CVE.ORG link : CVE-2022-29402

JSON object : View

Products Affected

tp-link

tl-wr840n_firmware
tl-wr840n

CWE

CWE-306

Missing Authentication for Critical Function

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