Main Vulnerability Database Vulnerabilities #VU83597

#VU83597 Improper Neutralization of Special Elements in Output Used by a Downstream Component in NAS326 and NAS542 - CVE-2023-37927

Published: November 30, 2023

Vulnerability identifier: #VU83597

Vulnerability risk: Medium

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

CVE-ID: CVE-2023-37927

CWE-ID: CWE-74

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
NAS326
NAS542

Software vendor:
ZyXEL Communications Corp.

Description

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

The vulnerability exists due to improper neutralization of special elements in the CGI program. A remote user can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

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

Remediation

Install updates from vendor's website.

External links

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products