CVE-2023-35137

An improper authentication vulnerability in the authentication module of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to obtain system information by sending a crafted URL to a vulnerable device.

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://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:zyxel:nas326_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:zyxel:nas326:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:zyxel:nas542_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:zyxel:nas542:-:*:*:*:*:*:*:*

History

05 Dec 2023, 18:31

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CPE		cpe:2.3:o:zyxel:nas542_firmware:::::::: cpe:2.3:h:zyxel:nas326:-:::::::* cpe:2.3:o:zyxel:nas326_firmware:::::::: cpe:2.3:h:zyxel:nas542:-:::::::*
References	~~() https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products -~~	() https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products - Patch, Vendor Advisory

30 Nov 2023, 02:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-11-30 02:15

Updated : 2024-02-05 00:22

NVD link : CVE-2023-35137

Mitre link : CVE-2023-35137

CVE.ORG link : CVE-2023-35137

JSON object : View

Products Affected

zyxel

nas542
nas326_firmware
nas326
nas542_firmware

CWE

CWE-287

Improper Authentication

{"id": "CVE-2023-35137", "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": "security@zyxel.com.tw", "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": "2023-11-30T02:15:42.460", "references": [{"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products", "tags": ["Patch", "Vendor Advisory"], "source": "security@zyxel.com.tw"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security@zyxel.com.tw", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "An improper authentication vulnerability in the authentication module of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to obtain system information by sending a crafted URL to a vulnerable device."}, {"lang": "es", "value": "Una vulnerabilidad de autenticaci\u00f3n incorrecta en el m\u00f3dulo de autenticaci\u00f3n de la versi\u00f3n de firmware V5.21(AAZF.14)C0 de Zyxel NAS326 y la versi\u00f3n de firmware NAS542 V5.21(ABAG.11)C0 podr\u00eda permitir que un atacante no autenticado obtenga informaci\u00f3n del sistema enviando una URL manipulada a un dispositivo vulnerable."}], "lastModified": "2023-12-05T18:31:08.797", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:nas326_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "897157F4-9F3E-4F03-91DF-6223C1BAA451", "versionEndIncluding": "5.21\\(aazf.14\\)c0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:nas326:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E0A01B19-4A91-4FBC-8447-2E854346DAC5"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:nas542_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A0D05F3-0FBD-43D0-8041-2AAF822B83C5", "versionEndIncluding": "5.21\\(abag.11\\)c0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:nas542:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "31C4DD0F-28D0-4BF7-897B-5EEC32AA7277"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "security@zyxel.com.tw"}