#VU35868 Cross-site scripting in pfsense - CVE-2019-12347
Published: May 29, 2019 / Updated: June 17, 2021
Vulnerability identifier: #VU35868
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear
CVE-ID: CVE-2019-12347
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
pfsense
pfsense
Software vendor:
Rubicon Communications
Rubicon Communications
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can permanently inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
External links
- http://packetstormsecurity.com/files/153112/pfSense-2.4.4-p3-Cross-Site-Scripting.html
- https://ctrsec.io/index.php/2019/05/28/stored-xss-acme-pfsense-2-4-4-p3/
- https://github.com/pfsense/FreeBSD-ports/commit/504909564079e540689dbdbed3a579483c614275
- https://redmine.pfsense.org/issues/9554#change-40729
- https://www.pfsense.org/download/