CVE-2017-14187 Privilege escalation in FortiOS

Medium 6.2 Published Updated

Local attackers can execute unauthorized code and escalate privileges by linking a USB binary to an allowed fnsysctl command on FortiGate devices.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-14187?

CVE-2017-14187 is a medium-severity vulnerability in Fortinet Fortios, published on 24 May 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A local privilege escalation and local code execution vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.8, and 5.2 and below versions allows attacker to execute unauthorized binary program contained on an USB drive plugged into a FortiGate via linking the aforementioned binary program to a command that is allowed to be run by the fnsysctl CLI command.

Weakness: CWE-269

Which versions are affected by CVE-2017-14187?

It affects 1 product.

Products include Fortinet Fortios.

How do I fix CVE-2017-14187?

No fix has been published for CVE-2017-14187 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-14187 being exploited?

There is no known exploitation of CVE-2017-14187 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Fortinet Fortios vulnerabilities

Sources

Also known as GHSA-vhrf-7c9m-v558.

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