#VU61938 Deserialization of Untrusted Data in H2 Database - CVE-2022-23221

Vulnerability identifier: #VU61938

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
H2 Database
Server applications / Database software

Vendor: H2 Database Engine

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

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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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.