CVE-2021-34204

Severity Score

6.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

D-Link DIR-2640-US 1.01B04 is affected by Insufficiently Protected Credentials. D-Link AC2600(DIR-2640) stores the device system account password in plain text. It does not use linux user management. In addition, the passwords of all devices are the same, and they cannot be modified by normal users. An attacker can easily log in to the target router through the serial port and obtain root privileges.

D-Link DIR-2640-US versión 1.01B04, está afectado por Credenciales insuficientemente protegidas. D-Link AC2600(DIR-2640) almacena la contraseña de la cuenta del sistema del dispositivo en texto plano. No usa la administración de usuarios de Linux. Además, las contraseñas de todos los dispositivos son las mismas, y no pueden ser modificadas por usuarios normales. Un atacante puede entrar fácilmente en el router objetivo mediante el puerto serie y alcanzar privilegios de root

*Credits: N/A

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

2021-06-07 CVE Reserved
2021-06-16 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-10-19 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-522: Insufficiently Protected Credentials

CAPEC

References (4)

URL	Tag	Source
http://d-link.com	Broken Link
http://dir-2640-us.com	Broken Link

URL	Date	SRC
https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34204	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://www.dlink.com/en/security-bulletin	2024-02-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Dlink Search vendor "Dlink"	Dir-2640-us Firmware Search vendor "Dlink" for product "Dir-2640-us Firmware"	1.01b04 Search vendor "Dlink" for product "Dir-2640-us Firmware" and version "1.01b04"	-	Affected	in	Dlink Search vendor "Dlink"	Dir-2640-us Search vendor "Dlink" for product "Dir-2640-us"	-	-	Safe