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pfSense: pfSense-SA-16_07.webgui: Arbitrary Code Execution

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pfSense: pfSense-SA-16_07.webgui: Arbitrary Code Execution

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
06/09/2016
Created
07/25/2018
Added
08/25/2017
Modified
01/30/2020

Description

A command-injection vulnerability exists in pkg_mgr_install.php using the 'id' parameter. This allows an authenticated WebGUI user with privileges for pkg_mgr_install.php to execute commands in the context of the root user. A user on pfSense version 2.3.1_1 or earlier, granted limited access to the pfSense web configurator GUI including access to pkg_mgr_install.php could leverage these vulnerabilities to gain increased privileges, read other files, execute commands, or perform other alterations. Some characters, such as '/' and '-' were filtered, which limits the number of commands which could be executed using this vulnerability. This is not relevant for admin-level users as there are other deliberate means by which an administrator could run commands.

Solution(s)

  • pfsense-upgrade-latest

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