PT-2018-16369 · Netgate · Pfsense Ce

Published 2018-12-03 · Updated 2022-06-07 · CVE-2018-4021

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 pfSense CE version 2.4.4-RELEASE

Description A command injection issue exists in the way 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 battery mode parameter.

Recommendations For pfSense CE version 2.4.4-RELEASE, as a temporary workaround, consider restricting access to the administration web interface to minimize the risk of exploitation. Avoid using the powerd battery 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-2018-4021

Affected Products

Pfsense Ce

References · 3

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2018-0690 · Exploit
• https://osv.dev/vulnerability/CVE-2018-4021 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-4021 · Security Note