CVE-2022-2030

State: Published
Severity: 6.5 Medium
Published: Jul 19, 2022
Updated: Aug 3, 2024
Reserved: Jun 8, 2022

Description

A directory traversal vulnerability caused by specific character sequences within an improperly sanitized URL was identified in some CGI programs of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.11 through 4.72, that could allow an authenticated attacker to access some restricted files on a vulnerable device.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	Zyxel

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
USG FLEX 100(W) firmwareZyxel	4.50 through 5.30Affected
USG FLEX 200 firmwareZyxel	4.50 through 5.30Affected
USG FLEX 500 firmwareZyxel	4.50 through 5.30Affected
USG FLEX 700 firmwareZyxel	4.50 through 5.30Affected
ATP series firmwareZyxel	4.32 through 5.30Affected
VPN series firmwareZyxel	4.30 through 5.30Affected
USG FLEX 50(W) firmwareZyxel	4.16 through 5.30Affected
USG 20(W)-VPN firmwareZyxel	4.16 through 5.30Affected
USG/ZyWALL series firmwareZyxel	4.11 through 4.72Affected

References

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

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