CVE-2021-42392 : Vulnerability Insights and Analysis
Learn about CVE-2021-42392, a critical vulnerability in org.h2.util.JdbcUtils.getConnection method of H2 database allowing remote code execution. Find out affected versions and mitigation steps.
CVE-2021-42392 is a vulnerability in the org.h2.util.JdbcUtils.getConnection method of the H2 database, allowing for remote code execution. This CVE affects the h2database version 1.1.000, enabling attackers to exploit the vulnerability through various attack vectors.
Understanding CVE-2021-42392
What is CVE-2021-42392?
The vulnerability in the org.h2.util.JdbcUtils.getConnection method allows an attacker to pass a JNDI driver name and URL that can lead to LDAP or RMI servers, resulting in remote code execution. This vulnerability is particularly exploitable through the H2 Console, allowing unauthenticated remote code execution.
The Impact of CVE-2021-42392
This vulnerability poses a high risk as it can be exploited by attackers to execute remote code on affected systems, potentially leading to significant data breaches and system compromise.
Technical Details of CVE-2021-42392
Vulnerability Description
The vulnerability exists in the org.h2.util.JdbcUtils.getConnection method, enabling attackers to execute remote code by passing malicious driver names and URLs.
Affected Systems and Versions
- Vendor: h2database
- Product: h2
- Version: 1.1.000 (custom)
Exploitation Mechanism
Attackers can exploit this vulnerability through various attack vectors, with the H2 Console being a notable point of entry for unauthenticated remote code execution.
Mitigation and Prevention
Immediate Steps to Take
- Update to a patched version of the h2database that addresses CVE-2021-42392.
- Restrict access to the H2 Console to authorized users only.
Long-Term Security Practices
- Regularly update and patch all software components to prevent known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
- Conduct security audits and penetration testing to identify and address security weaknesses.
Patching and Updates
Apply security patches and updates provided by h2database to remediate CVE-2021-42392 and enhance the overall security posture of the system.