Fortinet FortiClient for macOS CVE-2019-17650 Local Command Injection Vulnerability



Date Discovered

October 29, 2019


Fortinet FortiClient for macOS is prone to a local command-injection vulnerability. An attacker may exploit this issue to inject and execute arbitrary commands with root privileges. Versions prior to FortiClient for macOS 6.2.2 are vulnerable.

Technologies Affected

  • Fortinet FortiClient 5.4.0
  • Fortinet FortiClient 5.4.1
  • Fortinet FortiClient 5.4.2
  • Fortinet FortiClient 5.4.3
  • Fortinet FortiClient 5.4.4
  • Fortinet FortiClient 5.6
  • Fortinet FortiClient 5.6.0
  • Fortinet FortiClient 5.6.1
  • Fortinet FortiClient 6.0.1
  • Fortinet FortiClient 6.0.2
  • Fortinet FortiClient 6.0.3
  • Fortinet FortiClient 6.0.4
  • Fortinet FortiClient 6.0.5
  • Fortinet FortiClient 6.0.6
  • Fortinet FortiClient 6.0.7
  • Fortinet FortiClient 6.0.8
  • Fortinet FortiClient 6.2.0
  • Fortinet FortiClient 6.2.1


Permit local access for trusted individuals only. Where possible, use restricted environments and restricted shells.
Restrict local access to trusted and accountable individuals only.

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

Implement multiple redundant layers of security.
Since this issue may be leveraged to execute code, we recommend memory-protection schemes, such as non-executable stack/heap configurations and randomly mapped memory segments. This tactic may complicate exploits of memory-corruption vulnerabilities.

Updates are available. Please see the references or vendor advisory for more information.



Lasse Trolle Borup of Langkjaer Cyber Defence

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