SB2022022309 - Multiple vulnerabilities in Zyxel Armor home routers

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Main Vulnerability Database SB2022022309

SB2022022309 - Multiple vulnerabilities in Zyxel Armor home routers

Published: February 23, 2022

Security Bulletin ID SB2022022309
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) OS Command Injection (CVE-ID: CVE-2021-4029)

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.


2) Cross-site scripting (CVE-ID: CVE-2021-4030)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the HTTP daemon. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Remediation

Install update from vendor's website.

References