Rapid7 Vulnerability & Exploit Database

pfSense: pfSense-SA-17_09.webgui: Multiple XSS vulnerabilities in the WebGUI Dashboard

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pfSense: pfSense-SA-17_09.webgui: Multiple XSS vulnerabilities in the WebGUI Dashboard

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/14/2017
Created
07/25/2018
Added
11/22/2017
Modified
02/20/2020

Description

Cross-Site Scripting (XSS) vulnerabilities were found in the dashboard and widgets, components of the pfSense software WebGUI, on version 2.4.1 and earlier of the 2.4.x release branch. * On index.php, the "sequence" parameter component for multiple widget instance counters was not validated and it was echoed back to the user directly without encoding. A specially-crafted submission could store an invalid widget sequence which could be used as an XSS vector. * On numerous widgets which support multiple instances, the widgetkey parameter was taken from $_REQUEST and echoed back to the user directly without encoding, which could be used as an XSS vector. Due to the lack of proper encoding on the affected variable susceptible to XSS, arbitrary JavaScript can be executed in the user's browser. The user's session cookie or other information from the session may be compromised.

Solution(s)

  • pfsense-upgrade-latest

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