CVE-2022-31814 EXPLOIT
9.8
CRITICAL · CVSS 3.1 · EPSS 91.9% (pctl 100)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 91.88% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-78 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2022-09-05 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| netgate | pfblockerng |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | pfBlockerNG 2.1.4_26 - Remote Code Execution (RCE) | 2023-02-20 |
References
- http://packetstormsecurity.com/files/168743/pfSense-pfBlockerNG-2.1.4_26-Shell-Upload.html
- http://packetstormsecurity.com/files/171123/pfBlockerNG-2.1.4_26-Remote-Code-Execution.html
- https://docs.netgate.com/pfsense/en/latest/packages/pfblocker.html
- https://github.com/pfsense/FreeBSD-ports/pull/1169
- https://github.com/pfsense/FreeBSD-ports/pull/1169/commits/071bdcf2d918c3e51cde11cf81fbd9b6f0379d7e
- https://www.ihteam.net/advisory/pfblockerng-unauth-rce-vulnerability/
- http://packetstormsecurity.com/files/168743/pfSense-pfBlockerNG-2.1.4_26-Shell-Upload.html
- http://packetstormsecurity.com/files/171123/pfBlockerNG-2.1.4_26-Remote-Code-Execution.html
- https://docs.netgate.com/pfsense/en/latest/packages/pfblocker.html
- https://github.com/pfsense/FreeBSD-ports/pull/1169
- https://github.com/pfsense/FreeBSD-ports/pull/1169/commits/071bdcf2d918c3e51cde11cf81fbd9b6f0379d7e
- https://www.ihteam.net/advisory/pfblockerng-unauth-rce-vulnerability/
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