// For flags

CVE-2021-3166

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

3
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered on ASUS DSL-N14U-B1 1.1.2.3_805 devices. An attacker can upload arbitrary file content as a firmware update when the filename Settings_DSL-N14U-B1.trx is used. Once this file is loaded, shutdown measures on a wide range of services are triggered as if it were a real update, resulting in a persistent outage of those services.

Se detectó un problema en los dispositivos ASUS DSL-N14U-B1 versión 1.1.2.3_805. Un atacante puede cargar contenido de archivo arbitrario como una actualización de firmware cuando el nombre de archivo Settings_DSL-N14U-B1.trx es usado. Una vez que es cargado este archivo, unas medidas de cierre en una amplia gama de servicios son desencadenadas como si fuera una actualización real, resultando en una interrupción persistente de esos servicios

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-18 CVE Reserved
  • 2021-01-18 CVE Published
  • 2022-11-18 First Exploit
  • 2023-08-24 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-434: Unrestricted Upload of File with Dangerous Type
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Asus
Search vendor "Asus"
 Dsl-n14u B1 Firmware
Search vendor "Asus" for product "Dsl-n14u B1 Firmware"
 1.1.2.3_805
Search vendor "Asus" for product "Dsl-n14u B1 Firmware" and version "1.1.2.3_805"
-
Affected
in Asus
Search vendor "Asus"
 Dsl-n14u B1
Search vendor "Asus" for product "Dsl-n14u B1"
--
Safe