Remote code execution in H2 database
| Risk | Critical |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-42392 |
| CWE-ID | CWE-502 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
H2 Database Server applications / Database software |
| Vendor | H2 Database Engine |
Security Bulletin
This security bulletin contains one critical risk vulnerability.
1) Deserialization of Untrusted Data
EUVDB-ID: #VU61937
Risk: Critical
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-42392
CWE-ID:
CWE-502 - Deserialization of Untrusted Data
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data within the org.h2.util.JdbcUtils.getConnection method. A remote attacker can pass a JNDI driver name and a URL leading to a LDAP or RMI servers and execute arbitrary code on the system.
Install updates from vendor's website.
Vulnerable software versionsH2 Database: 1.1 - 2.0.204
External linkshttp://github.com/h2database/h2database/security/advisories/GHSA-h376-j262-vhq6
http://jfrog.com/blog/the-jndi-strikes-back-unauthenticated-rce-in-h2-database-console/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
