#VU59128 OS Command Injection in ZyXEL Communications Corp. products - CVE-2021-35031

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Main Vulnerability Database Vulnerabilities #VU59128

#VU59128 OS Command Injection in ZyXEL Communications Corp. products - CVE-2021-35031

Published: January 3, 2022


Vulnerability identifier: #VU59128
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-35031
CWE-ID: CWE-78
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
GS1900-8
XGS1210-12
XGS1250-12
Software vendor:
ZyXEL Communications Corp.

Description

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

The vulnerability exists due to improper input validation in the TFTP client. A local 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