CVE-2023-35138

A command injection vulnerability in the “show_zysync_server_contents” function 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 execute some operating system (OS) commands by sending a crafted HTTP POST request.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

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, 18:30

Type	Values Removed	Values Added
CPE		cpe:2.3:o:zyxel:nas326_firmware:::::::: cpe:2.3:o:zyxel:nas542_firmware:::::::: cpe:2.3:h:zyxel:nas542:-:::::::* cpe:2.3:h:zyxel:nas326:-:::::::*
First Time		Zyxel nas326 Firmware Zyxel nas542 Firmware Zyxel Zyxel nas326 Zyxel nas542
CWE		CWE-78
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 : 2023-12-10 15:26

NVD link : CVE-2023-35138

Mitre link : CVE-2023-35138

CVE.ORG link : CVE-2023-35138

JSON object : View

Products Affected

zyxel

nas326_firmware
nas542_firmware
nas326
nas542

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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