#VU64698 Incorrect authorization in nats-server - CVE-2022-24450

Vulnerability identifier: #VU64698

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-24450

CWE-ID: CWE-863

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
nats-server
Server applications / Other server solutions

Vendor: NATS - The Cloud Native Messaging System

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 RC14 - 2.7.1

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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

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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.