漏洞描述

Apache Tapestry是美国阿帕奇（Apache）软件基金会的一款使用Java语言编写的Web应用程序框架。 Apache Tapestry 5.4.0版本（包括：betas版本）至5.4.3版本中存在安全漏洞。攻击者可利用该漏洞运行恶意的Java代码。

Manipulating classpath asset file URLs, an attacker could guess the path to a known file in the classpath and have it downloaded. If the attacker found the file with the value of the tapestry.hmac-passphrase configuration symbol, most probably the webapp's AppModule class, the value of this symbol could be used to craft a Java deserialization attack, thus running malicious injected Java code. The vector would be the t:formdata parameter from the Form component.