OS Command Injection in NBG6816 (Armor Z1) and NBG6817 (Armor Z2) - CVE-2021-4029

 

OS Command Injection in NBG6816 (Armor Z1) and NBG6817 (Armor Z2) - CVE-2021-4029

Published: February 23, 2022


Vulnerability identifier: #VU60816
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-4029
CWE-ID: CWE-78
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: ZyXEL Communications Corp.
Affected software:
NBG6816 (Armor Z1)
NBG6817 (Armor Z2)

Detailed vulnerability description

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

The vulnerability exists due to improper input validation. A local attacker can execute arbitrary OS commands on the target system.

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


How to mitigate CVE-2021-4029

Install updates from vendor's website.

Sources