Medium

Spring Jpa Show Sql

Create dynamic native queries. Creating a dynamic native query is quite simple. The EntityManager interface provides a method called createNativeQuery for it. This method returns an implementation of the Query interface which is the same as if you call the createQuery method to create a JPQL query. The following code snippet shows a simple example in which I used a native query to select the. Spring Data JPA aims to significantly improve the implementation of data access layers by reducing the effort to the amount that’s actually needed. As a developer you write your repository interfaces, including custom finder methods, and Spring will provide the implementation automatically. Sort instances handed into user defined Spring Data repository query methods using manually declared JPQL queries are handed to the persistence provider as is and allow attackers to inject arbitrary JPQL into ORDER BY clauses which they might use to draw conclusions about non-exposed fields based on the query result's element order changing depending on the injected JPQL. We also use JPA over Hibernate, Spring Data, or Spring JDBC templates quite often. We do run into certain scenarios where you still want to verify if the incoming data string is SQL-Injection.

Spring by Pivotal

• Spring Data JPA 1.10.2, 1.9.4
• Other unsupported versions are also affected

Spring Data Jpa Sql Injection Query

Sort instances handed into user defined Spring Data repository query methods using manually declared JPQL queries are handed to the persistence provider as is and allow attackers to inject arbitrary JPQL into ORDER BY clauses which they might use to draw conclusions about non-exposed fields based on the query result's element order changing depending on the injected JPQL.

This especially comes into play if the Sort instances are created from untrustable sources, e.g. web request parameters.

Users of affected versions should apply the following mitigation:

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• Users are advised to upgrade to Spring Data JPA in version 1.10.4 (Hopper SR4) or 1.9.6 (Gosling SR6). These versions contain sanitizing of the Sort instances handed to the data access layer and only allow referring to domain object fields and aliases used in the JPQL backing the query method.
• Should users still need to hand complex sort expressions to the data access layer, they can use the newly introduced JpaSort.unsafe(…) to reinstantiate the old behavior.

The vulnerability was reported responsibly by Niklas Särökaari from Silverskin Information Security and Joona Immonen, Arto Santala, Antti Virtanen, Michael Holopainen and Antti Ahola from Solita.

2016-September-30: Initial vulnerability report published