PT-2018-16368 · Netgate · Pfsense Ce

Published 2018-12-03 · Updated 2022-06-07 · CVE-2018-4020

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Netgate pfSense CE version 2.4.4-RELEASE

Description A command injection issue exists in the way Netgate pfSense CE processes the parameters of a specific POST request, allowing an attacker to execute arbitrary commands on the system. The attacker must be able to send authenticated POST requests to the administration web interface. Command injection is possible in the powerd ac mode parameter.

Recommendations For Netgate pfSense CE version 2.4.4-RELEASE, consider restricting access to the administration web interface to minimize the risk of exploitation. Avoid using the powerd ac mode parameter in the affected POST request until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2018-4020

Affected Products

Pfsense Ce

References · 3

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2018-0690 · Exploit
• https://osv.dev/vulnerability/CVE-2018-4020 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-4020 · Security Note