pfSense-pkg-WireGuard vulnerable to directory traversal


pfSense-pkg-WireGuard provided by pfSense is an add-on package for pfSense CE and pfSense Plus.
pfSense-pkg-WireGuard contains a directory traversal vulnerability (CWE-22).

Yutaka WATANABE of Ierae Security Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 6.5 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single Instance
  • Confidentiality Impact: Partial
  • Integrity Impact: None
  • Availability Impact: None
Affected Products

  • pfSense-pkg-WireGuard 0.1.5 versions prior to 0.1.5_4
  • pfSense-pkg-WireGuard 0.1.6 versions prior to 0.1.6_1


pfSense users may view files in the private folders which they do not have privileges to access.

[Update the add-on package]
Update the add-on package to the latest version according to the information provided by the developer.
Vendor Information

CWE (What is CWE?)

  1. Path Traversal(CWE-22) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2022-21132

  1. JVN : JVN#85572374
Revision History

  • [2022/03/03]
      Web page was published