CVE-2020-10916

This vulnerability allows network-adjacent attackers to escalate privileges on affected installations of TP-Link TL-WA855RE Firmware Ver: 855rev4-up-ver1-0-1-P1[20191213-rel60361] Wi-Fi extenders. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the first-time setup process. The issue results from the lack of proper validation on first-time setup requests. An attacker can leverage this vulnerability to reset the password for the Admin account and execute code in the context of the device. Was ZDI-CAN-10003.

CVSS v3 8.0 HIGH
CVSS v2.0 5.2 MEDIUM

8.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.1 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.2^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 5.1 / Impact : 6.4

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.zerodayinitiative.com/advisories/ZDI-20-553/	Third Party Advisory VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-553/	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:tp-link:tl-wa855re_firmware:190408:::::::*
	cpe:2.3:o:tp-link:tl-wa855re_firmware:191213:::::::*

cpe:2.3:h:tp-link:tl-wa855re:v4:*:*:*:*:*:*:*

History

21 Nov 2024, 04:56

Type	Values Removed	Values Added
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-20-553/ - Third Party Advisory, VDB Entry~~	() https://www.zerodayinitiative.com/advisories/ZDI-20-553/ - Third Party Advisory, VDB Entry

Information

Published : 2020-05-07 23:15

Updated : 2024-11-21 04:56

NVD link : CVE-2020-10916

Mitre link : CVE-2020-10916

CVE.ORG link : CVE-2020-10916

JSON object : View

Products Affected

tp-link

tl-wa855re_firmware
tl-wa855re

CWE

CWE-287

Improper Authentication

{"id": "CVE-2020-10916", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.2, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 5.1, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 8.0, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.1}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.0, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.1}]}, "published": "2020-05-07T23:15:11.577", "references": [{"url": "https://www.zerodayinitiative.com/advisories/ZDI-20-553/", "tags": ["Third Party Advisory", "VDB Entry"], "source": "zdi-disclosures@trendmicro.com"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-20-553/", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "zdi-disclosures@trendmicro.com", "description": [{"lang": "en", "value": "CWE-287"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "This vulnerability allows network-adjacent attackers to escalate privileges on affected installations of TP-Link TL-WA855RE Firmware Ver: 855rev4-up-ver1-0-1-P1[20191213-rel60361] Wi-Fi extenders. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the first-time setup process. The issue results from the lack of proper validation on first-time setup requests. An attacker can leverage this vulnerability to reset the password for the Admin account and execute code in the context of the device. Was ZDI-CAN-10003."}, {"lang": "es", "value": "Esta vulnerabilidad permite a atacantes adyacentes a la red escalar privilegios en las instalaciones afectadas de Extensores de Wi-Fi TP-Link TL-WA855RE versiones de Firmware: 855rev4-up-ver1-0-1-P1[20191213-rel60361]. Aunque es requerida una autenticaci\u00f3n para explotar esta vulnerabilidad, puede ser omitido el mecanismo de autenticaci\u00f3n. El fallo espec\u00edfico se presenta dentro del proceso de configuraci\u00f3n por primera vez. El problema resulta de una falta de comprobaci\u00f3n apropiada en una petici\u00f3n de configuraci\u00f3n por primera vez. Un atacante puede aprovechar esta vulnerabilidad para restablecer la contrase\u00f1a de la cuenta del Administrador y ejecutar el c\u00f3digo en el contexto del dispositivo. Fue ZDI-CAN-10003."}], "lastModified": "2024-11-21T04:56:21.810", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tp-link:tl-wa855re_firmware:190408:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BC478A2E-5E99-4879-ACE4-221791DC6772"}, {"criteria": "cpe:2.3:o:tp-link:tl-wa855re_firmware:191213:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B08B46BF-FC4D-4C3C-B882-809701E9BC47"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tp-link:tl-wa855re:v4:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "4FF0EB36-D263-4877-A17F-2211CCD0DB56"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com"}