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Pfsense CVE-2023-48123

HIGH
2023-12-06 cve@mitre.org
8.8
CVSS 3.1 · NVD
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Vulnerability Assessment

Impact

CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity + EPSS > 10%.
Patch available 67.8% exploitation probability (EPSS)

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AnalysisAI

An issue in Netgate pfSense Plus v.23.05.1 and before and pfSense CE v.2.7.0 allows a remote attacker to execute arbitrary code via a crafted request to the packet_capture.php file. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

An issue in Netgate pfSense Plus v.23.05.1 and before and pfSense CE v.2.7.0 allows a remote attacker to execute arbitrary code via a crafted request to the packet_capture.php file. Affected products include: Netgate Pfsense, Netgate Pfsense Plus.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

An issue in Netgate pfSense Plus v.23.05.1 and before and pfSense CE v.2.7.0 allows a remote attacker to execute arbitrary code via a crafted request to the packet_capture.php file.

Threat Intelligence Overview

EPSS Score
67.8%
Top 1% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 67.8%
Patch available Yes
Active threat No
Deciding rule
HIGH severity + EPSS > 10%
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

112
Low Medium High Critical
KEV: 0
EPSS: +68
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*
cpe:2.3:a:netgate:pfsense_plus:*:*:*:*:*:*:*:*
CVE-2015-2295 MEDIUM POC
6.8 Apr 10

Cross-site request forgery (CSRF) vulnerability in system_firmware_restorefullbackup.php in the WebGUI in pfSense before

CVE-2023-27253 HIGH POC
8.8 Mar 17

A command injection vulnerability in the function restore_rrddata() of Netgate pfSense v2.7.0 allows authenticated attac

CVE-2023-27100 CRITICAL POC
9.8 Mar 22

Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22

CVE-2022-40624 CRITICAL POC
9.8 Dec 20

pfSense pfBlockerNG through 2.1.4_27 allows remote attackers to execute arbitrary OS commands as root via the HTTP Host

CVE-2019-16667 HIGH POC
8.8 Sep 26

diag_command.php in pfSense 2.4.4-p3 allows CSRF via the txtCommand or txtRecallBuffer field, as demonstrated by executi

CVE-2019-16701 HIGH POC
8.8 Sep 25

pfSense through 2.3.4 through 2.4.4-p3 allows Remote Code Injection via a methodCall XML document with a pfsense.exec_ph

CVE-2018-4021 HIGH POC
7.2 Dec 03

An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the paramete

CVE-2018-4020 HIGH POC
7.2 Dec 03

An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the paramete

CVE-2018-4019 HIGH POC
7.2 Dec 03

An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the paramete

CVE-2014-4688 MEDIUM POC
6.5 Jul 02

pfSense before 2.1.4 allows remote authenticated users to execute arbitrary commands via (1) the hostname value to diag_

CVE-2022-42247 MEDIUM POC
6.1 Oct 03

pfSense v2.5.2 was discovered to contain a cross-site scripting (XSS) vulnerability in the browser.php component. Rated

CVE-2021-27933 MEDIUM POC
6.1 Apr 28

pfSense 2.5.0 allows XSS via the services_wol_edit.php Description field. Rated medium severity (CVSS 6.1), this vulnera

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