CVE-2021-26810

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request parameter can be used in command string construction in the handler function of the /goform/dir_setWanWifi, which can lead to command injection via shell metacharacters in the statuscheckpppoeuser parameter.

D-link DIR-816 A2 versión v1.10 está afectado por una vulnerabilidad de inyección de código remoto. Se puede usar un parámetro de petición HTTP en la construcción de cadenas de comandos en la función del manejador de /goform/dir_setWanWifi, que puede conllevar a una inyección de comandos por medio de metacaracteres de shell en el parámetro statuscheckpppoeuser.

*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

2021-02-05 CVE Reserved
2021-03-30 CVE Published
2024-08-02 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- 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/GD008/vuln/blob/main/DIR-816.md	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://www.dlink.com/en/security-bulletin	2022-07-12

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-816 Firmware Search vendor "Dlink" for product "Dir-816 Firmware"	1.10b05 Search vendor "Dlink" for product "Dir-816 Firmware" and version "1.10b05"	-	Affected	in	Dlink Search vendor "Dlink"	Dir-816 Search vendor "Dlink" for product "Dir-816"	a2 Search vendor "Dlink" for product "Dir-816" and version "a2"	-	Safe