CVE-2021-39509

An issue was discovered in D-Link DIR-816 DIR-816A2_FWv1.10CNB05_R1B011D88210 The HTTP request parameter is used in the handler function of /goform/form2userconfig.cgi route, which can construct the user name string to delete the user function. This can lead to command injection through shell metacharacters.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : 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://www.dlink.com/en/security-bulletin/	Vendor Advisory
https://github.com/doudoudedi/main-DIR-816_A2_Command-injection/blob/main/injection.md	Exploit Third Party Advisory
https://github.com/doudoudedi/main-DIR-816_A2_Command-injection	Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dlink:dir-816_firmware:1.10cnb05_r1b011d88210:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dir-816:a2:*:*:*:*:*:*:*

Information

Published : 2021-08-24 12:15

Updated : 2021-08-31 17:35

NVD link : CVE-2021-39509

Mitre link : CVE-2021-39509

JSON object : View

CWE

CWE-77

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

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Products Affected

dlink

dir-816_firmware
dir-816

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