CVE-2021-34204

D-Link DIR-2640-US 1.01B04 is affected by Insufficiently Protected Credentials. D-Link AC2600(DIR-2640) stores the device system account password in plain text. It does not use linux user management. In addition, the passwords of all devices are the same, and they cannot be modified by normal users. An attacker can easily log in to the target router through the serial port and obtain root privileges.

CVSS v3 6.8 MEDIUM
CVSS v2.0 7.2 HIGH

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector PHYSICAL

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

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
http://d-link.com	Broken Link
http://dir-2640-us.com	Broken Link URL Repurposed
https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34204	Exploit Third Party Advisory
https://www.dlink.com/en/security-bulletin/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dlink:dir-2640-us_firmware:1.01b04:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dir-2640-us:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-06-16 20:15

Updated : 2024-02-14 01:17

NVD link : CVE-2021-34204

Mitre link : CVE-2021-34204

CVE.ORG link : CVE-2021-34204

JSON object : View

Products Affected

dlink

dir-2640-us_firmware
dir-2640-us

CWE

CWE-522

Insufficiently Protected Credentials

{"id": "CVE-2021-34204", "cveTags": [], "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": 6.8, "attackVector": "PHYSICAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:P/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": 0.9}]}, "published": "2021-06-16T20:15:07.647", "references": [{"url": "http://d-link.com", "tags": ["Broken Link"], "source": "cve@mitre.org"}, {"url": "http://dir-2640-us.com", "tags": ["Broken Link", "URL Repurposed"], "source": "cve@mitre.org"}, {"url": "https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34204", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.dlink.com/en/security-bulletin/", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-522"}]}], "descriptions": [{"lang": "en", "value": "D-Link DIR-2640-US 1.01B04 is affected by Insufficiently Protected Credentials. D-Link AC2600(DIR-2640) stores the device system account password in plain text. It does not use linux user management. In addition, the passwords of all devices are the same, and they cannot be modified by normal users. An attacker can easily log in to the target router through the serial port and obtain root privileges."}, {"lang": "es", "value": "D-Link DIR-2640-US versi\u00f3n 1.01B04, est\u00e1 afectado por Credenciales insuficientemente protegidas. D-Link AC2600(DIR-2640) almacena la contrase\u00f1a de la cuenta del sistema del dispositivo en texto plano. No usa la administraci\u00f3n de usuarios de Linux. Adem\u00e1s, las contrase\u00f1as de todos los dispositivos son las mismas, y no pueden ser modificadas por usuarios normales. Un atacante puede entrar f\u00e1cilmente en el router objetivo mediante el puerto serie y alcanzar privilegios de root"}], "lastModified": "2024-02-14T01:17:43.863", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dir-2640-us_firmware:1.01b04:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1E8DB0D1-B2E6-457A-A4A5-C6AE9EB82624"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dir-2640-us:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "894C2BD1-B610-4F15-864E-92D6B515488D"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}