Remote code execution in HyperSQL Database

1) Exposed dangerous method or function

EUVDB-ID: #VU69302

Risk: High

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-2022-41853

CWE-ID: CWE-749 - Exposed Dangerous Method or Function

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to missing authorization when using java.sql.Statement or java.sql.PreparedStatement in hsqldb. By default it is allowed to call any static method of any Java class in the classpath resulting in code execution.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

HyperSQL database: 2.0.0 - 2.7.0

External links

http://hsqldb.org/doc/2.0/guide/sqlroutines-chapt.html#src_jrt_access_control
http://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50212#c7

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.