CVE-2025-34176: pfsense Path Traversal — Fix

Description

In pfSense CE /suricata/suricata_ip_reputation.php, the value of the iplist parameter is not sanitized of directory traversal-related strings/characters. This value is directly used in a file existence check operation. While the contents of the file cannot be read, the server reveals whether the file exists, which enables an attacker to enumerate files on the target. The attacker must be authenticated with at least "WebCfg - Services: suricata package" permissions.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-22 Path Traversal

Affected Products

Vendor	Product	Versions
pfsense	pfsense	< 2.8.0

References

Advisories & Patches

https://github.com/pfsense/FreeBSD-ports/commit/97852ccfd201b24ee542be30af81272485fde0b4

Other References

https://redmine.pfsense.org/issues/16414 https://www.vulncheck.com/advisories/netgate-pf-sense-ce-suricata-directory-traversal-information-disclosure

Frequently Asked Questions

What is CVE-2025-34176? +

In pfSense CE /suricata/suricata_ip_reputation.php, the value of the iplist parameter is not sanitized of directory traversal-related strings/characters. This value is directly used in a file existence check operation. While the contents of the file cannot be read, the server reveals whether the file exists, which enables an attacker to enumerate files on the target. The attacker must be authenticated with at least "WebCfg - Services: suricata package" permissions. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2025-34176? +

CVE-2025-34176 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-34176? +

CVE-2025-34176 affects products from pfsense, specifically: pfsense. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-34176? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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