CVE-2021-33265

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 FUN_80046eb4 in /formSetPortTr. This vulnerability is triggered via a crafted POST request.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.2 HIGH

9.8^/10

CVSS v3 : CRITICAL

V3 Legend

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

7.2^/10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln05	Exploit Third Party Advisory
https://www.dlink.com/en/security-bulletin/	Vendor Advisory
https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln05	Exploit Third Party Advisory
https://www.dlink.com/en/security-bulletin/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dlink:dir-809_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dir-809:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:08

Type	Values Removed	Values Added
References	~~() https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln05 - Exploit, Third Party Advisory~~	() https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln05 - Exploit, Third Party Advisory
References	~~() https://www.dlink.com/en/security-bulletin/ - Vendor Advisory~~	() https://www.dlink.com/en/security-bulletin/ - Vendor Advisory

Information

Published : 2021-12-01 22:15

Updated : 2024-11-21 06:08

NVD link : CVE-2021-33265

Mitre link : CVE-2021-33265

CVE.ORG link : CVE-2021-33265

JSON object : View

Products Affected

dlink

dir-809_firmware
dir-809

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2021-33265", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2021-12-01T22:15:07.557", "references": [{"url": "https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln05", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.dlink.com/en/security-bulletin/", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln05", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.dlink.com/en/security-bulletin/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "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 FUN_80046eb4 in /formSetPortTr. This vulnerability is triggered via a crafted POST request."}, {"lang": "es", "value": "Se ha detectado que los dispositivos D-Link DIR-809 con versi\u00f3n de firmware hasta DIR-809Ax_FW1.12WB03_20190410, contienen una vulnerabilidad de desbordamiento del b\u00fafer de la pila en la funci\u00f3n FUN_80046eb4 en /formSetPortTr. Esta vulnerabilidad es desencadenada por medio de una petici\u00f3n POST dise\u00f1ada"}], "lastModified": "2024-11-21T06:08:34.490", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dir-809_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "83964738-E503-43D1-90AB-42C46699702B", "versionEndIncluding": "1.12wwb03"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dir-809:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "4FD4771B-A3F0-4F1C-841C-D718AC7D8E40"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}

9.8 /10