說明：

研究人員發現SonicWall之電子郵件安全產品存在安全漏洞(CVE-2021-20021~20023)，攻擊者可藉由特製封包，利用此漏洞建立管理員帳號，進而可遠端執行任意程式碼。

影響平台:

受影響SonicWall之電子郵件安全產品如下：

SonicWall Email Security 10.0.9.6173(不含)以前版本(Windows)

SonicWall Email Security 10.0.9.6177(不含)以前版本(Hardware & ESXi Virtual Appliance)

SonicWall Hosted Email Security 10.0.9.6173(不含)以前版本

建議措施:

目前SonicWall官方已針對此漏洞釋出更新程式，請各機關聯絡設備維護廠商參考下方網址進行版本更新：

https://www.sonicwall.com/support/product-notification/security-notice-sonicwall-email-security-zero-day-vulnerabilities/210416112932360/

參考資料

1. https://www.sonicwall.com/support/product-notification/security-notice-sonicwall-email-security-zero-day-vulnerabilities/210416112932360/

2. https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007

3. https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0008

4. https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0010

5. https://www.fireeye.com/blog/threat-research/2021/04/zero-day-exploits-in-sonicwall-email-security-lead-to-compromise.html

6. https://www.ithome.com.tw/news/143987