6.8
MEDIUM
CVE-2022-29402
TP-Link TL-WR840N EU UART Command Injection
Description

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.

INFO

Published Date :

May 25, 2022, 6:15 p.m.

Last Modified :

Nov. 21, 2024, 6:59 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.9
Affected Products

The following products are affected by CVE-2022-29402 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Tp-link tl-wr840n_firmware
2 Tp-link tl-wr840n
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-29402.

URL Resource
https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html Exploit Third Party Advisory
https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-29402 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-29402 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jun. 07, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html No Types Assigned https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html Exploit, Third Party Advisory
    Added CWE NIST CWE-306
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:tl-wr840n_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:tl-wr840n:6.20:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:tl-wr840n_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:tl-wr840n:5.0:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-29402 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.10 }} 0.01%

score

0.40569

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability