Juniper ScreenOS 6.3.x < 6.3.0r21 Malformed SSL/TLS Packet DoS (JSA10732)

High Nessus Plugin ID 90708

Synopsis

The remote host is affected by a denial of service vulnerability.

Description

The remote host is running a version of Juniper ScreenOS that is 6.3.x prior to 6.3.0r21. It is, therefore, affected by a denial of service vulnerability in the administrative web services that is triggered when handling malformed SSL/TLS packets. An unauthenticated, remote attacker can exploit this, via a crafted SSL packet, to cause the loss of administrative access or to reboot the system.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Juniper ScreenOS version 6.3.0r21 or later.

See Also

https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10732

http://www.nessus.org/u?c4eb1929

Plugin Details

Severity: High

ID: 90708

File Name: screenos_JSA10732.nasl

Version: $Revision: 1.5 $

Type: local

Family: Firewalls

Published: 2016/04/26

Modified: 2017/06/12

Dependencies: 74148

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.8

Temporal Score: 6.4

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

Vulnerability Information

CPE: cpe:/o:juniper:screenos

Required KB Items: Host/Juniper/ScreenOS/display_version, Host/Juniper/ScreenOS/version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2015/12/21

Vulnerability Publication Date: 2016/04/13

Reference Information

CVE: CVE-2016-1268

JSA: JSA10732