Juniper ScreenOS 6.3 SSG-5 and SSG-20 (KRACK)

medium Nessus Plugin ID 105654

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New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The device is vulnerable to key reinstallation attacks (KRACK).

Description

The version of Juniper ScreenOS installed on the remote host is affected by multiple vulnerabilities related to the KRACK attacks.
This may allow an attacker to decrypt, replay, and forge some frames on a WPA2 encrypted network.

Note that Juniper's products do not support Fast BSS Transition Reassociation and PeerKey Handshake so are Not Vulnerable to CVE-2017-13082, CVE-2017-13084, CVE-2017-13086, CVE-2017-13087, or CVE-2017-13088.

Solution

Disable all Wi-Fi configurations and refer to the vendor advisory for further solution and mitigation options.

See Also

http://www.nessus.org/u?a379f4f4

Plugin Details

Severity: Medium

ID: 105654

File Name: screenos_jsa10827_krack.nasl

Version: 1.6

Type: local

Family: Firewalls

Published: 1/8/2018

Updated: 11/8/2019

Dependencies: screenos_version.nbin

Risk Information

CVSS Score Source: CVE-2017-13077

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

Vector: AV:A/AC:M/Au:N/C:P/I:P/A:P

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

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: cpe:/o:juniper:screenos

Required KB Items: Host/Juniper/ScreenOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 10/16/2017

Vulnerability Publication Date: 10/12/2017

Reference Information

CVE: CVE-2017-13077, CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081

BID: 101274

IAVA: 2017-A-0310