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速更新! 微軟Windows DNS伺服器、 TCP/IP存在安全漏洞,允許攻擊者遠端執行任意程式碼

2021 / 02 / 18
編輯部
速更新! 微軟Windows DNS伺服器、 TCP/IP存在安全漏洞,允許攻擊者遠端執行任意程式碼
研究人員發現微軟Windows DNS伺服器因輸入驗證不足,導致存在安全漏洞(CVE-2021-24078),遠端攻擊者可藉由發送特製封包,利用此漏洞進而執行任意程式碼。

使用下列Windows作業系統之伺服器如啟用DNS服務,將受此漏洞影響:
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server, version 1909 (Server Core installation)
  • Windows Server, version 2004 (Server Core installation)
  • Windows Server, version 20H2 (Server Core Installation)

建議措施:

目前微軟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或進行更新

Windows TCP/IP存在安全漏洞

微軟Windows TCP/IP 也存在安全漏洞 CVE-2021-24074、CVE-2021-24094及CVE-2021-24086,可能遭受以下攻擊:
  1. 遠端攻擊者可發送特製封包,利用CVE-2021-24074或CVE-2021-24094執行任意程式碼。
  2. 遠端攻擊者可發送特製封包,利用CVE-2021-24086造成服務阻斷。
建議措施:
1.目前微軟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或參考以下建議進行更新:
  • https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24094
  • https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24074
  • (https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24086

2.若無法立即更新,可參考官網公告採取緩解措施,並建議經測試再做調整
  • CVE-2021-24074
    執行官網因應措施中之PowerShell指令,停用IPv4之鬆散來源路由,防止攻擊者進行弱點利用,參考連結:https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24074
  • CVE-2021-24086與CVE-2021-24094
    執行官網因應措施中之PowerShell指令,於邊界網路設備上停用IPv6分段,防止攻擊者進行弱點利用,參考連結如下:
    https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24086
    https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24094
受影響之Windows作業系統包含用戶端及伺服器版本,版本如下: 
  • Windows Server, version 20H2 (Server Core Installation)
  • Windows 10 Version 20H2 for ARM64-based Systems
  • Windows 10 Version 20H2 for 32-bit Systems
  • Windows 10 Version 20H2 for x64-based Systems
  • Windows Server, version 2004 (Server Core installation)
  • Windows 10 Version 2004 for x64-based Systems
  • Windows 10 Version 2004 for ARM64-based Systems
  • Windows 10 Version 2004 for 32-bit Systems
  • Windows Server, version 1909 (Server Core installation)
  • Windows 10 Version 1909 for ARM64-based Systems
  • Windows 10 Version 1909 for x64-based Systems
  • Windows 10 Version 1909 for 32-bit Systems
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows RT 8.1
  • Windows 8.1 for x64-based systems
  • Windows 8.1 for x64-based systems
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for 32-bit systems
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows Server 2016  (Server Core installation)
  • Windows Server 2016
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows Server 2019  (Server Core installation)
  • Windows Server 2019
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems

本文轉載自NCCST。