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Vulnerability of FortiOS: privilege escalation via USB Storage Device

Synthesis of the vulnerability 

An attacker can bypass restrictions via USB Storage Device of FortiOS, in order to escalate his privileges.
Impacted systems: FortiGate, FortiGate Virtual Appliance, FortiOS.
Severity of this alert: 1/4.
Creation date: 22/05/2018.
Références of this alert: CERTFR-2018-AVI-246, CVE-2017-14187, FG-IR-17-245, VIGILANCE-VUL-26195.

Description of the vulnerability 

An attacker can bypass restrictions via USB Storage Device of FortiOS, in order to escalate his privileges.
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This computer weakness announce impacts software or systems such as FortiGate, FortiGate Virtual Appliance, FortiOS.

Our Vigil@nce team determined that the severity of this security alert is low.

The trust level is of type confirmed by the editor, with an origin of privileged shell.

An attacker with a expert ability can exploit this vulnerability.

Solutions for this threat 

FortiOS: fixed versions for USB Storage Device.
Fixed versions are indicated in information sources.
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