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vulnerability bulletin 21913

pfSense: multiple Cross Site Scripting and Cross Site Request Forgery in the administration web interface

Synthesis of the vulnerability

An attacker can trigger "Cross Site Scripting" of inject HTTP commands in the administration interface of pfSense, in order to run JavaScript code or inject administrative commands in the context of the web site.
Impacted products: pfSense.
Severity: 2/4.
Creation date: 21/02/2017.
Identifiers: pfSense-SA-17_03.webgui, VIGILANCE-VUL-21913.

Description of the vulnerability

The pfSense product includes a Web interface for administration purpose.

However, it does not always filter received data before inserting them in generated HTML documents; and it does not always check the right sequencing of HTTP requests before accepting a sensitive command.

An attacker can therefore trigger "Cross Site Scripting" of inject HTTP commands in the administration interface of pfSense, in order to run JavaScript code or inject administrative commands in the context of the web site.
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