SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-4020

An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request.

HIGH 7.2EPSS 48.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 48.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request. The attacker can exploit this and gain the ability to execute arbitrary commands on the system. An attacker needs to be able to send authenticated POST requests to the administration web interface. Command injection is possible in the `powerd_ac_mode` POST parameter parameter.

CVSS 3.1
7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
48.72% probability · 99th percentile
CISA KEV
Not listed
Weakness
CWE-78
Affected
netgate/pfsense
Source
talos-cna@cisco.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.