Multiple vulnerabilities in Moxa MXsecurity Series

Published: 2023-05-26

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-33235 CVE-2023-33236
CWE-ID	CWE-77 CWE-798
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	MXsecurity Server applications / Other server solutions
Vendor	Moxa

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Command Injection

EUVDB-ID: #VU76536

Risk: Low

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-33235

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation within the SSH CLI program. A remote administrator 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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MXsecurity: 1.0

External links

http://www.moxa.com/en/support/product-support/security-advisory/mxsecurity-command-injection-and-hardcoded-credential-vulnerabilities
http://www.cisa.gov/news-events/ics-advisories/icsa-23-145-01
http://www.zerodayinitiative.com/advisories/ZDI-23-721/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Use of hard-coded credentials

EUVDB-ID: #VU76538

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-33236

CWE-ID: CWE-798 - Use of Hard-coded Credentials