Multiple vulnerabilities in Moxa Routers

Published: 2022-11-25

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-41758 CVE-2022-41759
CWE-ID	CWE-287 CWE-77
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	TN-5916 Hardware solutions / Routers & switches, VoIP, GSM, etc EDR-G902 Series Hardware solutions / Routers & switches, VoIP, GSM, etc EDR-G903 Series Hardware solutions / Routers & switches, VoIP, GSM, etc TN-4900 Hardware solutions / Routers & switches, VoIP, GSM, etc Moxa EDR-810 Server applications / SCADA systems
Vendor	Moxa

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Authentication

EUVDB-ID: #VU69584

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-41758

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests in the web service. A remote attacker can bypass authentication process and execute arbitrary commands on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TN-5916: 3.2

CPE2.3

External links

https://www.moxa.com/en/support/product-support/security-advisory/multiple-routers-improper-input-validation-vulnerabilities

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

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) Command Injection

EUVDB-ID: #VU69587

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-41759

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in the web service. A remote attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.

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