#VU76536 Command Injection in MXsecurity - CVE-2023-33235

Vulnerability identifier: #VU76536

Vulnerability risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-33235

CWE-ID: CWE-77

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MXsecurity
Server applications / Other server solutions

Vendor: Moxa

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