CVE-2021-43711

The downloadFlile.cgi binary file in TOTOLINK EX200 V4.0.3c.7646_B20201211 has a command injection vulnerability when receiving GET parameters. The parameter name can be constructed for unauthenticated command execution.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/doudoudedi/ToTolink_EX200_Cmmand_Execute/blob/main/ToTolink%20EX200%20Comand%20Injection2.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:ex200_firmware:4.0.3c.7646_b20201211:*:*:*:*:*:*:*

cpe:2.3:h:totolink:ex200:-:*:*:*:*:*:*:*

History

12 Jan 2022, 15:25

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8
First Time		Totolink Totolink ex200 Firmware Totolink ex200
CPE		cpe:2.3:o:totolink:ex200_firmware:4.0.3c.7646_b20201211:::::::* cpe:2.3:h:totolink:ex200:-:::::::*
CWE		CWE-77
References	~~(MISC) https://github.com/doudoudedi/ToTolink_EX200_Cmmand_Execute/blob/main/ToTolink%20EX200%20Comand%20Injection2.md -~~	(MISC) https://github.com/doudoudedi/ToTolink_EX200_Cmmand_Execute/blob/main/ToTolink%20EX200%20Comand%20Injection2.md - Exploit, Third Party Advisory

04 Jan 2022, 14:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-01-04 14:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-43711

Mitre link : CVE-2021-43711

CVE.ORG link : CVE-2021-43711

JSON object : View

Products Affected

totolink

ex200_firmware
ex200

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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