CVE-2022-31814 : pfSense pfBlockerNG through 2.1.4_26 allows remote attackers to execute arbitrar

pfSense pfBlockerNG through 2.1.4_26 allows remote attackers to execute arbitrary OS commands as root via shell metacharacters in the HTTP Host header. NOTE: 3.x is unaffected.

Published 2022-09-05 16:15:09

Updated 2024-07-03 01:38:28

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2022-31814

Netgate » Pfblockerng » For Pfsense
Versions up to, including, (<=) 2.1.4_26
cpe:2.3:a:netgate:pfblockerng:*:*:*:*:*:pfsense:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2022-31814

EPSS FAQ

97.10%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 100 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2022-31814

pfSense plugin pfBlockerNG unauthenticated RCE as root

Disclosure Date: 2022-09-05

First seen: 2022-12-23

exploit/unix/http/pfsense_pfblockerng_webshell

Authors: - IHTeam - jheysel-r7

More information

CVSS scores for CVE-2022-31814

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	134c704f-9b21-4f2e-91b3-4a467353bcc0	2024-07-03
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2022-31814

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)

References for CVE-2022-31814

https://www.ihteam.net/advisory/pfblockerng-unauth-rce-vulnerability/

pfBlockerNG Unauth RCE Vulnerability - IHTeam Security Blog
Exploit;Technical Description;Third Party Advisory
https://github.com/pfsense/FreeBSD-ports/pull/1169/commits/071bdcf2d918c3e51cde11cf81fbd9b6f0379d7e

pfBlockerNG v2.1.4_27 by BBcan177 · Pull Request #1169 · pfsense/FreeBSD-ports · GitHub
http://packetstormsecurity.com/files/168743/pfSense-pfBlockerNG-2.1.4_26-Shell-Upload.html

pfSense pfBlockerNG 2.1.4_26 Shell Upload ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry
https://github.com/pfsense/FreeBSD-ports/pull/1169

pfBlockerNG v2.1.4_27 by BBcan177 · Pull Request #1169 · pfsense/FreeBSD-ports · GitHub
http://packetstormsecurity.com/files/171123/pfBlockerNG-2.1.4_26-Remote-Code-Execution.html

pfBlockerNG 2.1.4_26 Remote Code Execution ≈ Packet Storm
https://docs.netgate.com/pfsense/en/latest/packages/pfblocker.html

Packages — pfBlocker-NG Package | pfSense Documentation
Release Notes;Vendor Advisory

CVEs referencing this url

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