com.h2database:h2@2.0.202 vulnerabilities

com.h2database:h2 is a database engine

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. Consequently, a malicious local user or an attacker that has obtained local access through some means would be able to get the password for the H2 web admin console by looking at the running processes.

Vendor Statement: "This is not a vulnerability of the H2 Console, this is an example of how not to use it. I think there is nothing to do with it on the H2 side. Passwords should never be passed on the command line, and every qualified DBA or system administrator is expected to know that."

Upgrade com.h2database:h2 to version 2.2.220 or higher.

com.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;FORBID_CREATION=FALSE;INIT=RUNSCRIPT substring.

Upgrade com.h2database:h2 to version 2.1.210 or higher.

com.h2database:h2 is a database engine

Affected versions of this package are vulnerable to Remote Code Execution (RCE). H2 Console allows loading of custom classes from remote servers through JNDI. This can lead to code execution

If remote access was enabled explicitly and some protection method (such as security constraint) are not set, an intruder can load their own custom class and execute their code in a process using H2 Console (a H2 Server process or a web server with H2 Console servlet).

Note: It should be noted that H2 Console doesn't accept remote connections by default.

Workarounds

• H2 Console should never be available to untrusted users.

• -webAllowOthers is a dangerous setting that should be avoided.

• H2 Console Servlet deployed on a web server can be protected with a security constraint: https://h2database.com/html/tutorial.html#usingH2ConsoleServlet If webAllowOthers is specified, you need to uncomment and edit and as necessary. See documentation of your web server for more details.

All these workaround are mitigatory and unlikely to prevent all attack vectors, upgrade to a fixed version for full remediation.

Upgrade com.h2database:h2 to version 2.0.206 or higher.

com.h2database:h2 is a database engine

Affected versions of this package are vulnerable to Remote Code Execution (RCE). It provides a web console for managing the database, and by default it does not have a password set. The CREATE ALIAS function calls Java code, allowing an attacker to execute arbitrary Java code on projects running the h2 database.

NOTE: To be remotely exploitable, the affected application must be configured with the non-default setting webAllowOthers=true, either in a config file or as a parameter passed in when the servlet is invoked. The vulnerability can be avoided by setting a password on the database and/or restricting access to localhost using the above setting.

There is no fixed version for com.h2database:h2.