Directory Traversal Vulnerability in Zyxel USG FLEX and VPN Series Products
CVE-2022-2030

6.5MEDIUM

Key Information:

Vendor

Zyxel
Status
Usg Flex 100(w) Firmware
Usg Flex 200 Firmware
Usg Flex 500 Firmware
Usg Flex 700 Firmware
Vendor
CVE Published:
19 July 2022

What is CVE-2022-2030?

A directory traversal vulnerability in Zyxel's firewall CGI programs allows an authenticated attacker to exploit improper sanitization of specific character sequences in URLs, potentially granting access to sensitive files restricted from general access. This flaw affects a range of Zyxel USG FLEX devices and VPN series firmware, necessitating prompt attention and remediation to protect against unauthorized file access.

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Affected Version(s)

ATP series firmware 4.32 through 5.30

USG 20(W)-VPN firmware 4.16 through 5.30

USG FLEX 100(W) firmware 4.50 through 5.30

References

https://www.zyxel.com/support/Zyxel-security-advisory-aut...
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CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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