CVE-2020-9277

An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. Authentication can be bypassed when accessing cgi modules. This allows one to perform administrative tasks (e.g., modify the admin password) with no authentication.

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://raelize.com/advisories/CVE-2020-9277_D-Link-DSL-2640B_CGI-Authentication-bypass_v1.0.txt	Third Party Advisory
https://raelize.com/posts/d-link-dsl-2640b-security-advisories/	Exploit Third Party Advisory
https://www.dlink.com/en/security-bulletin	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dlink:dsl-2640b_firmware:eu_4.01b:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dsl-2640b:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-04-20 23:15

Updated : 2024-02-28 17:47

NVD link : CVE-2020-9277

Mitre link : CVE-2020-9277

CVE.ORG link : CVE-2020-9277

JSON object : View

Products Affected

dlink

dsl-2640b
dsl-2640b_firmware

CWE

CWE-287

Improper Authentication

{"id": "CVE-2020-9277", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "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": "2020-04-20T23:15:12.707", "references": [{"url": "https://raelize.com/advisories/CVE-2020-9277_D-Link-DSL-2640B_CGI-Authentication-bypass_v1.0.txt", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://raelize.com/posts/d-link-dsl-2640b-security-advisories/", "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-287"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. Authentication can be bypassed when accessing cgi modules. This allows one to perform administrative tasks (e.g., modify the admin password) with no authentication."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en los dispositivos D-Link DSL-2640B versi\u00f3n B2 EU_4.01B. La autenticaci\u00f3n puede ser omitida al acceder a los m\u00f3dulos cgi. Esto le permite a uno llevar a cabo tareas administrativas (por ejemplo, modificar la contrase\u00f1a de administrador) sin autenticaci\u00f3n."}], "lastModified": "2020-04-28T20:11:11.913", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dsl-2640b_firmware:eu_4.01b:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "67FB6EF8-2982-482B-96F7-FF2B5467B55C"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dsl-2640b:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A39232DC-A11D-4869-A89F-42CEF434709A"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}