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Vulnerability of FortiOS: information disclosure via Admin Password Hash

Synthesis of the vulnerability 

A local attacker can read the admin password hash of FortiOS, in order to perform a brute force.
Impacted products: FortiGate, FortiGate Virtual Appliance, FortiOS.
Severity of this bulletin: 2/4.
Creation date: 05/12/2016.
Références of this threat: CVE-2016-7542, FG-IR-16-050, VIGILANCE-VUL-21267.

Description of the vulnerability 

The FortiOS product stores the admin password hash.

However, a local attacker can bypass access restrictions to data, and read this hash.

A local attacker can therefore read the admin password hash of FortiOS, in order to perform a brute force.
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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 medium.

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

An attacker with a expert ability can exploit this vulnerability.

Solutions for this threat 

FortiOS: versions 5.2.10 and 5.4.2.
Versions 5.2.10 and 5.4.2 are fixed:
  http://fortiguard.com/
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Vigil@nce provides application vulnerability alerts. The technology watch team tracks security threats targeting the computer system.