CVE-2021-28152

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Hongdian H8922 3.0.5 devices have an undocumented feature that allows access to a shell as a superuser. To connect, the telnet service is used on port 5188 with the default credentials of root:superzxmn.

Los dispositivos Hongdian H8922 versión 3.0.5, presentan una función no documentada que permite el acceso a un shell como superusuario. Para conectarse, el servicio telnet es usado en el puerto 5188 con las credenciales predeterminadas root:superzxmn

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-11 CVE Reserved
2021-05-06 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-09-08 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-287: Improper Authentication

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities	2024-08-03

URL	Date	SRC

URL	Date	SRC
http://en.hongdian.com/Products/Details/H8922	2023-08-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Hongdian Search vendor "Hongdian"	H8922 Firmware Search vendor "Hongdian" for product "H8922 Firmware"	3.0.5 Search vendor "Hongdian" for product "H8922 Firmware" and version "3.0.5"	-	Affected	in	Hongdian Search vendor "Hongdian"	H8922 Search vendor "Hongdian" for product "H8922"	-	-	Safe