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缓慢的http拒绝服务攻击 - VAN

https://zzreno.github.io/2022/02/26/%E6%8B%92%E7%BB%9D%E6%9C%8D%E5%8A%A1%E6%94%BB%E5%87%BB/%E7%BC%93%E6%85%A2%E7%9A%84http%E6%8B%92%E7%BB%9D%E6%9C%8D%E5%8A%A1%E6%94%BB%E5%87%BB/

Apache Tomcat拒绝服务漏洞(CVE-2021-42340)是因代码中没有对http连接创建的对象进行释放,从而导致内存泄漏,和缓慢的http拒绝服务异曲同工。 一、攻击原理缓慢的HTTP拒绝服务攻击是CC攻击的变种,该攻击针对Web应用层,通过缓慢发送http请求,占用了服务器资源,保持和服务器通信的不中断,降低服务器响应效率。Web Server的并发连接有一定的上限,若攻击者发送大

Spring Cloud Gateway spel 远程代码执行(CVE-2022-22947) - VAN

https://zzreno.github.io/2022/02/28/%E5%91%BD%E4%BB%A4%E6%89%A7%E8%A1%8C/Spring%20Cloud%20Gateway%20spel%20%E8%BF%9C%E7%A8%8B%E4%BB%A3%E7%A0%81%E6%89%A7%E8%A1%8C(CVE-2022-22947)/

一、漏洞信息1. 服务简介Spring Cloud Gateway 是基于 Spring Framework 和 Spring Boot 构建的 API 网关,它旨在为微服务架构提供一种简单、有效、统一的 API 路由管理方式。 如果启用和暴露 Gateway Actuator的gateway端点,就可能存在CVE-2022-22947漏洞。 2. 风险等级阿里云漏洞评分9.9 CVSS评分:9.

Apache Tomcat拒绝服务漏洞(CVE-2021-42340) - VAN

https://zzreno.github.io/2022/02/26/2022/3%E6%9C%88%E5%89%8D/Apache%20Tomcat%E6%8B%92%E7%BB%9D%E6%9C%8D%E5%8A%A1%E6%BC%8F%E6%B4%9E(CVE-2021-42340)/

一、漏洞信息1. 服务简介Tomcat是由Apache软件基金会属下Jakarta项目开发的Servlet容器,按照Sun Microsystems提供的技术规范,实现了对Servlet和JavaServer Page(JSP)的支持,并提供了作为Web服务器的一些特有功能,如Tomcat管理和控制平台、安全局管理和Tomcat阀等。由于Tomcat本身也内含了HTTP服务器,因此也可以视作单独的

Spring Cloud Gateway spel 远程代码执行(CVE-2022-22947) - VAN

https://zzreno.github.io/2022/03/05/%E5%91%BD%E4%BB%A4%E6%89%A7%E8%A1%8C/Spring%20Cloud%20Gateway%20spel%20%E8%BF%9C%E7%A8%8B%E4%BB%A3%E7%A0%81%E6%89%A7%E8%A1%8C(CVE-2022-22947)/

一、漏洞信息1. 服务简介Spring Cloud Gateway 是基于 Spring Framework 和 Spring Boot 构建的 API 网关,它旨在为微服务架构提供一种简单、有效、统一的 API 路由管理方式。 如果启用和暴露 Gateway Actuator的gateway端点,就可能存在CVE-2022-22947漏洞。 2. 风险等级阿里云漏洞评分9.9 CVSS评分:9.

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