CVE-2022-23970

ASUS RT-AX56U’s update_json function has a path traversal vulnerability due to insufficient filtering for special characters in the URL parameter. An unauthenticated LAN attacker can overwrite a system file by uploading another file with the same file name, which results in service disruption.

CVSS v3 8.1 HIGH
CVSS v2.0 4.8 MEDIUM

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 6.5 / Impact : 4.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.twcert.org.tw/tw/cp-132-5784-68aa3-1.html	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:asus:rt-ax56u_firmware:3.0.0.4.386.45898:*:*:*:*:*:*:*

cpe:2.3:h:asus:rt-ax56u:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-04-07 19:15

Updated : 2024-02-28 19:09

NVD link : CVE-2022-23970

Mitre link : CVE-2022-23970

CVE.ORG link : CVE-2022-23970

JSON object : View

Products Affected

asus

rt-ax56u
rt-ax56u_firmware

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

{"id": "CVE-2022-23970", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.8, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:N/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "twcert@cert.org.tw", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 2.8}]}, "published": "2022-04-07T19:15:08.473", "references": [{"url": "https://www.twcert.org.tw/tw/cp-132-5784-68aa3-1.html", "tags": ["Third Party Advisory"], "source": "twcert@cert.org.tw"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-22"}]}, {"type": "Secondary", "source": "twcert@cert.org.tw", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "ASUS RT-AX56U\u2019s update_json function has a path traversal vulnerability due to insufficient filtering for special characters in the URL parameter. An unauthenticated LAN attacker can overwrite a system file by uploading another file with the same file name, which results in service disruption."}, {"lang": "es", "value": "La funci\u00f3n update_json de ASUS RT-AX56U, presenta una vulnerabilidad de salto de ruta debido a un filtrado insuficiente de caracteres especiales en el par\u00e1metro URL. Un atacante LAN no autenticado puede sobrescribir un archivo del sistema al cargar otro archivo con el mismo nombre, lo que resulta en una interrupci\u00f3n del servicio"}], "lastModified": "2022-04-14T20:42:42.577", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:asus:rt-ax56u_firmware:3.0.0.4.386.45898:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "61EEB080-88DF-4822-AEF5-4E076FC12531"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:asus:rt-ax56u:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "4D747097-702E-4046-9723-01A586336534"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "twcert@cert.org.tw"}