lalajun / rmideserialize Goto Github PK
View Code? Open in Web Editor NEWRMI 反序列化环境 一步步
RMI 反序列化环境 一步步
LookupPayloadInjectingProxyThread的handleData中用于捕获替换RMI请求的if判断:
if(dataBytes.length > 7 && dataBytes[0] == (byte)0x50) {
在一些网络环境下会失效,测试发现ecs上跑的时候会出现这个问题。
原因在于tcp的粘包,有时候这个0x50开头的包会和前面发送的那个包含ip地址的rmi包粘在一起,导致该if判断失效,建议改成:
int indexOf = indexOfByteArray(dataBytes, new byte[]{(byte)0x50, (byte)0xac, (byte)0xed});
if(dataBytes.length > 7 && indexOf != -1) {
//blockLen和out.write偏移位也需要改一下,加上indexof
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