A buffer overflow vulnerability in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.7, 5.4 and earlier versions and FortiProxy 2.0.0, 1.2.8 and earlier versions under SSL VPN web portal allows a non-authenticated attacker to perform a Denial-of-service attack via special craft message payloads.

The remote host is running a version of FortiOS prior or equal to 5.4, 5.6.x prior to 5.6.8 or 6.0.x prior to 6.0.5. It is, therefore, affected by a buffer overflow condition in the SSL-VPN web portal, due to a failure to properly parse message payloads. An unauthenticated attacker can exploit this, via a specially crafted request to cause a denial of service condition.

Detections

Analytics

CVE-2018-13381

high

Tenable Plugins

high