Privilege escalation in Moxa devices

1) Improper Privilege Management

EUVDB-ID: #VU69480

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3088

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to improper privilege management. A local user can escalate privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

UC-8100A-ME-T: 1.0 - 1.6

UC-2100: 1.0 - 1.12

UC-2100-W: 1.0 - 1.12

UC-3100: 1.0 - 1.6

UC-5100: 1.0 - 1.4

UC-8100: 3.0 - 3.5

UC-8100-ME-T: 3.0 - 3.1

UC-8200: 1.0 - 1.5

AIG-300: 1.0 - 1.4

UC-8410A: 4.0.2 - 4.1.2

UC-8580: 2.0 - 2.1

UC-8540: 2.0 - 2.1

DA-662C-16-LX: 1.0.2 - 1.1.2

External links

http://www.moxa.com/en/support/product-support/security-advisory/arm-based-computer-improper-privilege-management-vulnerability

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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