Vulnerability identifier: #VU59277

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-31522

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Kylin
Server applications / Database software

Vendor: Apache Foundation

Description

The vulnerability allows a remote user to compromise the affected application.

The vulnerability exists due to the application allows to load any class through Class.forName(...) call. A remote user can execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Kylin: 4.0.0, 3.1.0 - 3.1.2, 3.0.0 - 3.0.2, 2.6.0 - 2.6.6, 2.5.0 - 2.5.2, 2.4.0 - 2.4.1, 2.3.0 - 2.3.2, 2.2.0, 2.1.0, 2.0.0

---

External links
http://lists.apache.org/thread/hh5crx3yr701zd8wtpqo1mww2rlkvznw
http://www.openwall.com/lists/oss-security/2022/01/06/4

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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