Hillstone Networks

'; } 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：339677）

Rule General Information


Release Date:		2025-12-02

Rule Name:		Suspicious File Extensions Bypass Detection

Severity:

CVE ID:

Rule Protection Details


Description:		File extension bypass is when an attacker alters or obfuscates a file’s extension (e.g., shell.jsp;.jpg, shell.jsp%00.jpg, or double extensions) to trick server-side extension/whitelist checks into misclassifying a malicious executable as benign, allowing it to be stored in an executable location and potentially enabling remote code execution, persistence, or privilege escalation.

Impact:		An attacker could exploit this vulnerability to have unspecified effect.

Affected OS:		Windows, Linux, Others

Reference:

Solutions

Please contact the software vendor to update the software patch.