SB2022071902 - Multiple vulnerabilities in Zyxel products

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2022-30526)

The vulnerability allows a local attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in the CLI command. A local attacker can execute arbitrary OS commands with root privileges.

2) Path traversal (CVE-ID: CVE-2022-2030)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in some CGI programs. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.

Remediation

Install update from vendor's website.

References

• https://www.zyxel.com/support/Zyxel-security-advisory-authenticated-directory-traversal-vulnerabilities-of-firewalls.shtml