CVE-2021-42392

The org.h2.util.JdbcUtils.getConnection method of the H2 database takes as parameters the class name of the driver and URL of the database. An attacker may pass a JNDI driver name and a URL leading to a LDAP or RMI servers, causing remote code execution. This can be exploited through various attack vectors, most notably through the H2 Console which leads to unauthenticated remote code execution.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• https://github.com/h2database/h2database/security/advisories/GHSA-h376-j262-vhq6
• https://jfrog.com/blog/the-jndi-strikes-back-unauthenticated-rce-in-h2-database-console/
• https://lists.debian.org/debian-lts-announce/2022/02/msg00017.html
• https://security.netapp.com/advisory/ntap-20220119-0001/
• https://www.debian.org/security/2022/dsa-5076
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://www.secpod.com/blog/log4shell-critical-remote-code-execution-vulnerability-in-h2database-console/
• https://github.com/h2database/h2database/security/advisories/GHSA-h376-j262-vhq6
• https://jfrog.com/blog/the-jndi-strikes-back-unauthenticated-rce-in-h2-database-console/
• https://lists.debian.org/debian-lts-announce/2022/02/msg00017.html
• https://security.netapp.com/advisory/ntap-20220119-0001/
• https://www.debian.org/security/2022/dsa-5076
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://www.secpod.com/blog/log4shell-critical-remote-code-execution-vulnerability-in-h2database-console/