Multiple vulnerabilities in OpenBlocks IoT VX2

Published: 2020-03-03

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-5535 CVE-2020-5536
CWE-ID	CWE-78 CWE-287
Exploitation vector	Local network
Public exploit	N/A
Vulnerable software Subscribe	OpenBlocks IoT VX2 Hardware solutions / Routers & switches, VoIP, GSM, etc
Vendor	Plat\'Home Co.,Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) OS Command Injection

EUVDB-ID: #VU25733

Risk: Low

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

CVE-ID: CVE-2020-5535

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation. A remote unauthenticated attacker on the local network can execute arbitrary OS commands with root privileges on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenBlocks IoT VX2: before 4.0.0

External links

http://jvn.jp/en/jp/JVN19666251/index.html
http://www.plathome.co.jp/software/vx2-v4-0-0/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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 device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Improper Authentication

EUVDB-ID: #VU25734