Improper access control in CoreOS Ignition

1) Improper access control

EUVDB-ID: #VU63493

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1706

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in ignition configs. A remote user on the local network can bypass implemented security restrictions and obtain sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ignition: 2.0.0 - 2.13.0

External links

http://bugzilla.redhat.com/show_bug.cgi?id=2082274
http://github.com/coreos/ignition/issues/1300
http://github.com/coreos/ignition/commit/4b70b44b430ecf8377a276e89b5acd3a6957d4ea
http://github.com/coreos/ignition/pull/1350
http://github.com/coreos/ignition/issues/1315

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

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.