JVN#87751554
Multiple vulnerabilities in pfSense

Overview

pfSense contains multiple vulnerabilities.

Products Affected

CVE-2021-20729

• pfSense CE software versions 2.5.2 and earlier
• pfSense Plus software versions 21.05 and earlier

• pfSense CE software versions prior to 2.6.0
• pfSense Plus software versions prior to 22.01

Description

pfSense software provided by Netgate contains multiple vulnerabilities listed below.

• Cross-site scripting (CWE-79) - CVE-2021-20729

  CVSS v3	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	Base Score: 6.1
  CVSS v2	AV:N/AC:M/Au:N/C:N/I:P/A:N	Base Score: 4.3

• Improper access control (CWE-284) - CVE-2022-26019

  CVSS v3	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	Base Score: 7.2
  CVSS v2	AV:N/AC:L/Au:S/C:C/I:C/A:C	Base Score: 9.0

• Improper input validation (CWE-20) - CVE-2022-24299

  CVSS v3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N	Base Score: 5.4
  CVSS v2	AV:N/AC:L/Au:S/C:P/I:P/A:N	Base Score: 5.5

Impact

• An arbitrary script may be executed on a user's web browser when following a malicious URL to visit the captive portal login page - CVE-2021-20729
• A user with the privilege to change NTP GPS settings may rewrite existing files on the file system, resulting to arbitrary command execution - CVE-2022-26019
• A user with the privilege to change OpenVPN client or server settings may execute arbitrary commands - CVE-2022-24299

Solution

Update the software
Update the software to the latest version according to the information provided by the developer.