Fortinet FortiOS 4.3.x < 4.3.19 TLS and IPSEC Information Disclosure

Low Nessus Plugin ID 95440


The remote host is affected by an information disclosure vulnerability.


The remote FortiGate device is running a version of FortiOS that is 4.3.x prior to 4.2.19. It is, therefore, affected by a flaw due to the implementation the ANSI X9.31 RNG that is used to decrypt TLS and IPSec traffic. A man-in-the-middle (MitM) attacker can exploit this to disclose sensitive information.


Upgrade to Fortinet FortiOS version 4.3.19 / 5.0 or later.

See Also

Plugin Details

Severity: Low

ID: 95440

File Name: fortios_CVE-2016-8492.nasl

Version: 1.6

Type: local

Family: Firewalls

Published: 2016/12/01

Modified: 2018/07/11

Dependencies: 73522

Risk Information

Risk Factor: Low


Base Score: 2.6

Temporal Score: 1.9

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:U/RL:OF/RC:C


Base Score: 3.7

Temporal Score: 3.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

Required KB Items: Host/Fortigate/model, Host/Fortigate/version

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2016/11/22

Vulnerability Publication Date: 2016/11/22

Reference Information

CVE: CVE-2016-8492

BID: 94480