Incorrect authorization in nats-server

1) Incorrect authorization

EUVDB-ID: #VU64698

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24450

CWE-ID: CWE-863 - Incorrect Authorization

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to misusing the "dynamically provisioned sandbox accounts" feature. A remote user can take advantage of its valid account and switch over to another existing account without further authentication to obtain the privileges of the System account.

Mitigation

Install update from vendor's website.

Vulnerable software versions

nats-server: 2.0.0 - 2.7.1

External links

http://github.com/nats-io/nats-server/releases/tag/v2.7.2
http://advisories.nats.io/CVE/CVE-2022-24450.txt
http://bugzilla.redhat.com/show_bug.cgi?id=2052573

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.