CVE-2021-46319

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Remote Code Execution (RCE) vulnerability exists in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicious users can use this vulnerability to use "\ " or backticks to bypass the shell metacharacters in the ssid0 or ssid1 parameters to execute arbitrary commands.This vulnerability is due to the fact that CVE-2019-17509 is not fully patched and can be bypassed by using line breaks or backticks on its basis.

Se presenta una vulnerabilidad de Ejecución de Código Remota (RCE) en el router D-Link DIR-846 DIR846A1_FW100A43.bin y DIR846enFW100A53DLA-Retail.bin. Los usuarios maliciosos pueden usar esta vulnerabilidad para usar "\ ~" o backticks para omitir los metacaracteres de shell en los parámetros ssid0 o ssid1 para ejecutar comandos arbitrarios.Esta vulnerabilidad es debido a que CVE-2019-17509 no está completamente parcheado y puede ser omitido mediante el uso de saltos de línea o backticks en su base

*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

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-01-18 CVE Reserved
2022-02-17 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-11-02 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/doudoudedi/DIR-846_Command_Injection/blob/main/DIR-846_Command_Injection1.md	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://www.dlink.com/en/security-bulletin	2022-02-25

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-846 Firmware Search vendor "Dlink" for product "Dir-846 Firmware"	100a43 Search vendor "Dlink" for product "Dir-846 Firmware" and version "100a43"	-	Affected	in	Dlink Search vendor "Dlink"	Dir-846 Search vendor "Dlink" for product "Dir-846"	a1 Search vendor "Dlink" for product "Dir-846" and version "a1"	-	Safe
Dlink Search vendor "Dlink"	Dir-846 Firmware Search vendor "Dlink" for product "Dir-846 Firmware"	100a53dla Search vendor "Dlink" for product "Dir-846 Firmware" and version "100a53dla"	-	Affected	in	Dlink Search vendor "Dlink"	Dir-846 Search vendor "Dlink" for product "Dir-846"	-	-	Safe