DNS劫持,特别是通过‘坐等’技术进行的攻击,是一种利用域名系统(DNS)中的漏洞来控制域名的方法。这种攻击通常发生在域名注册商和DNS服务提供商之间的管理权限存在漏洞时。攻击者通过这些漏洞,可以在不拥有合法域名所有者账户的情况下,篡改域名的DNS记录。具体来说,攻击者会利用域名服务器委托(name server delegation)的弱点,即权威域名服务器缺乏对域名的信息,从而无法解析查询或子域名。这种情况下,攻击者可以在委托的权威DNS提供商处声称拥有域名的所有权,进而实施劫持。为了防范此类攻击,域名所有者和DNS服务提供商需要加强安全措施,包括定期检查DNS记录的完整性、使用多因素认证、以及实施严格的访问控制策略。
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