CVE-2022-38955

An exploitable firmware modification vulnerability was discovered on the Netgear WPN824EXT WiFi Range Extender. An attacker can conduct a MITM attack to modify the user-uploaded firmware image and bypass the CRC check. A successful attack can either introduce a backdoor to the device or make the device DoS. This affects Firmware Version: 1.1.1_1.1.9.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s
https://www.netgear.com/about/security/	Vendor Advisory
https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s
https://www.netgear.com/about/security/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:netgear:wpn824ext_firmware:1.1.1_1.1.9:*:*:*:*:*:*:*

cpe:2.3:h:netgear:wpn824ext:-:*:*:*:*:*:*:*

History

21 Nov 2024, 07:17

Type	Values Removed	Values Added
References	~~() https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s -~~	() https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s -
References	~~() https://www.netgear.com/about/security/ - Vendor Advisory~~	() https://www.netgear.com/about/security/ - Vendor Advisory

07 Nov 2023, 03:50

Type	Values Removed	Values Added
References	~~{'url': 'https://hackmd.io/@eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s', 'name': 'https://hackmd.io/@eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s', 'tags': ['Exploit', 'Third Party Advisory'], 'refsource': 'MISC'}~~	() https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s -

Information

Published : 2022-09-20 18:15

Updated : 2024-11-21 07:17

NVD link : CVE-2022-38955

Mitre link : CVE-2022-38955

CVE.ORG link : CVE-2022-38955

JSON object : View

Products Affected

netgear

wpn824ext
wpn824ext_firmware

CWE

CWE-354

Improper Validation of Integrity Check Value

{"id": "CVE-2022-38955", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.6}]}, "published": "2022-09-20T18:15:10.360", "references": [{"url": "https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s", "source": "cve@mitre.org"}, {"url": "https://www.netgear.com/about/security/", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://hackmd.io/%40eupX2KdkT6iNpqJUWk9p4A/SyAnOSd1s", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.netgear.com/about/security/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-354"}]}], "descriptions": [{"lang": "en", "value": "An exploitable firmware modification vulnerability was discovered on the Netgear WPN824EXT WiFi Range Extender. An attacker can conduct a MITM attack to modify the user-uploaded firmware image and bypass the CRC check. A successful attack can either introduce a backdoor to the device or make the device DoS. This affects Firmware Version: 1.1.1_1.1.9."}, {"lang": "es", "value": "Se ha detectado una vulnerabilidad de modificaci\u00f3n del firmware explotable en el extensor de rango WiFi WPN824EXT de Netgear. Un atacante puede llevar a cabo un ataque de tipo MITM para modificar la imagen de firmware cargada por el usuario y omitir la comprobaci\u00f3n CRC. Un ataque con \u00e9xito puede introducir una puerta trasera en el dispositivo o hacer que el dispositivo sea DoS. Esto afecta a la versi\u00f3n de firmware: 1.1.1_1.1.9"}], "lastModified": "2024-11-21T07:17:16.800", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netgear:wpn824ext_firmware:1.1.1_1.1.9:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CE64B5C4-A1B2-44EF-B7C2-C1D5B780C613"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netgear:wpn824ext:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9593E661-FFF8-40E0-AB35-94CEA98BF901"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}