Vulnerability Monitor

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CVE-2021-33271

D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function sub_80046EB4 in /formSetPortTr. This vulnerability is triggered via a crafted POST request.

Published

2021-12-01T22:15:07.863

Last Modified

2024-11-21T06:08:38.040

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

10.0

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	dlink	dir-809_firmware	≤ 1.12wwb03	Yes
Hardware	dlink	dir-809	-	No

References

https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln11 Exploit, Third Party Advisory ([email protected])
https://www.dlink.com/en/security-bulletin/ Vendor Advisory ([email protected])
https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln11 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.dlink.com/en/security-bulletin/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)