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'; } ?>

vul_other:xstream_deserialization_rce_vul（Rule ID：1070310161）

Release Date：2025/9/15

Rule Name：CVE-2021-21351: XStream Deserialization Remote Code Execution Vulnerability

Severity：critical

CVE ID：CVE-2021-21351

Descripiton：

XStream is a lightweight, easy-to-use open source Java class library of the XStream (XStream) team, which is mainly used to sequence the object serial into XML (JSON) or reverse sequences. A code issue vulnerability existed in XStream prior to 1.4.16 that could allow an attacker to load and execute arbitrary code on a remote host simply by manipulating the processed input stream. This rule supports to defend the A6: Vulnerable and Outdated Components of OWASP Top 10 - 2021.
Other reference：None

Solution：

Update vendor patches.