'; } else{ echo ''; } echo 'Hillstone Networks'; } elseif ($_SERVER[HTTP_HOST] == "update1.huaantech.com.cn") { echo ''; echo 'huaantech'; } elseif ($_SERVER[HTTP_HOST] == "update1.dcnetworks.com.cn") { echo ''; echo 'dcnetworks'; } elseif ($_SERVER[HTTP_HOST] == "update1.w-ibeda.com") { if (false===strpos($_SERVER[REQUEST_URI],"/en/")) echo ''; else echo ''; echo 'w-ibeda'; } elseif ($_SERVER[HTTP_HOST] == "update1.hp-telecom.com") { echo ''; echo 'hp-telecom'; } elseif ($_SERVER[HTTP_HOST] == "update1.maipu.com") { echo ''; echo 'Maipu'; } elseif ($_SERVER[HTTP_HOST] == "update1.ncurity.com") { echo ''; echo 'Ncurity'; } elseif ($_SERVER[HTTP_HOST] == "update1.socusnetwork.com") { echo ''; echo 'Socusnetwork'; } else{ echo ''; echo 'Hillstone Networks'; } ?>
 
   
 

RULE（RULE ID：346159）

Rule General Information
Release Date: 2026-09-16
Rule Name: Zyxel NAS326 NAS542 OS Command Injection Vulnerability (CVE-2023-4474)
Severity:
CVE ID:
Rule Protection Details
Description: The improper neutralization of special elements in the WSGI server 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 URL to a vulnerable device.
Impact: An attacker can execute arbitrary command via a successful exploit in the context of the vulnerable software.
Affected OS: Windows, Linux, Others
Reference: https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices/
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products
Solutions
Please refer to announcements or patches release by the vendor: https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products