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CVE-2021-43859 PoC — XStream 资源管理错误漏洞

Source
https://github.com/andikahilmy/CVE-2021-43859-xstream-vulnerable
Associated Vulnerability
Title:XStream 资源管理错误漏洞 (CVE-2021-43859)
Description:XStream是XStream（Xstream）团队的一个轻量级的、简单易用的开源Java类库，它主要用于将对象序列化成XML（JSON）或反序列化为对象。 XStream 存在资源管理错误漏洞，该漏洞允许远程攻击者可利用该漏洞根据CPU类型或此类负载的并行执行在目标系统上分配100%的CPU时间，导致仅通过操作已处理的输入流来拒绝服务。XStream 1.4.19监视并累积向集合添加元素所需的时间，并在超过设置的阈值时抛出异常。建议用户尽快升级。无法升级的用户可以设置NO REFERENCE模式以防止递
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