CVE-2022-4874

Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a "fake login" to give the request an active session to load the file and not redirect to the login page.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md	Exploit Third Party Advisory
https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:netcommwireless:nf20_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:netcommwireless:nf20:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:netcommwireless:nf20mesh_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:netcommwireless:nf20mesh:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:netcommwireless:nl1902_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:netcommwireless:nl1902:-:*:*:*:*:*:*:*

History

21 Nov 2024, 07:36

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-01-11 21:15

Updated : 2025-04-09 15:15

NVD link : CVE-2022-4874

Mitre link : CVE-2022-4874

CVE.ORG link : CVE-2022-4874

JSON object : View

Products Affected

netcommwireless

nf20_firmware
nf20mesh
nf20mesh_firmware
nl1902_firmware
nl1902
nf20

CWE

CWE-287

Improper Authentication

{"id": "CVE-2022-4874", "cveTags": [], "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:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2023-01-11T21:15:10.373", "references": [{"url": "https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md", "tags": ["Exploit", "Third Party Advisory"], "source": "cret@cert.org"}, {"url": "https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a \"fake login\" to give the request an active session to load the file and not redirect to the login page."}, {"lang": "es", "value": "La omisi\u00f3n de autenticaci\u00f3n en los modelos de router Netcomm NF20MESH, NF20 y NL1902 permite que un usuario no autenticado acceda al contenido. Para ofrecer contenido est\u00e1tico, la aplicaci\u00f3n verifica la existencia de caracteres espec\u00edficos en la URL (.css, .png, etc.). Si existe, realiza un \"inicio de sesi\u00f3n falso\" para darle a la solicitud una sesi\u00f3n activa para cargar el archivo y no redirigir a la p\u00e1gina de inicio de sesi\u00f3n."}], "lastModified": "2025-04-09T15:15:55.690", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netcommwireless:nf20_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "447DAC30-D02D-43A7-9C11-9B29D3AE6292", "versionEndExcluding": "r6b025"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netcommwireless:nf20:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "C9BF282B-6B02-492D-A248-80D6C5DD0B50"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netcommwireless:nf20mesh_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "492B3CE0-A18A-4D6E-A20F-5CD00D8FC234", "versionEndExcluding": "r6b025"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netcommwireless:nf20mesh:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "79CF62CC-4353-4090-8D85-5F8126A029EB"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netcommwireless:nl1902_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "131C4DCD-D115-40AE-A53D-2C3B4799CBD5", "versionEndExcluding": "r6b025"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netcommwireless:nl1902:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B02578F1-96D9-4A0C-A27E-F08518A7CA55"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cret@cert.org"}