Remote code execution in H2 database

1) Deserialization of Untrusted Data

EUVDB-ID: #VU61938

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-23221

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The 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 jdbc:h2:mem. A remote attacker can pass specially crafted JDBC URL containing the IGNORE_UNKNOWN_SETTINGS=TRUE;FORBID_CREATION=FALSE;INIT=RUNSCRIPT substring to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

H2 Database: 1.0 - 2.0.206

CPE2.3

• cpe:2.3:a:h2database:h2database:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:h2database:h2database:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:h2database:h2database:1.2:*:*:*:*:*:*:*

External links

https://github.com/h2database/h2database/security/advisories
https://github.com/h2database/h2database/releases/tag/version-2.1.210
https://twitter.com/d0nkey_man/status/1483824727936450564
https://seclists.org/fulldisclosure/2022/Jan/39

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.