CVE-2020-17531 PoC — Deserialization flaw in EOL Tapestry 4.

Source

https://github.com/154802388/CVE-2020-17531

Associated Vulnerability

Title: Deserialization flaw in EOL Tapestry 4. (CVE-2020-17531)
Description:A Java Serialization vulnerability was found in Apache Tapestry 4. Apache Tapestry 4 will attempt to deserialize the "sp" parameter even before invoking the page's validate method, leading to deserialization without authentication. Apache Tapestry 4 reached end of life in 2008 and no update to address this issue will be released. Apache Tapestry 5 versions are not vulnerable to this issue. Users of Apache Tapestry 4 should upgrade to the latest Apache Tapestry 5 version.

Description

Apache Struts2框架是一个用于开发Java EE网络应用程序的Web框架。Apache Struts于2020年12月08日披露 S2-061 Struts 远程代码执行漏洞（CVE-2020-17530），在使用某些tag等情况下可能存在OGNL表达式注入漏洞，从而造成远程代码执行，风险极大。提醒我校Apache Struts用户尽快采取安全措施阻止漏洞攻击。

Readme

# CVE-2020-17530
Apache Struts2框架是一个用于开发Java EE网络应用程序的Web框架。Apache Struts于2020年12月08日披露 S2-061 Struts 远程代码执行漏洞（CVE-2020-17530），在使用某些tag等情况下可能存在OGNL表达式注入漏洞，从而造成远程代码执行，风险极大。提醒我校Apache Struts用户尽快采取安全措施阻止漏洞攻击。

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