Juniper ScreenOS 6.2.0r15 < 6.2.0r19 / 6.3.0r12 < 6.3.0r21 Multiple Vulnerabilities (JSA10713)

critical Nessus Plugin ID 87507

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Synopsis

The remote host is affected by multiple vulnerabilities.

Description

The remote host is running a version of Juniper ScreenOS that is 6.2.x prior to 6.2.0r19 or 6.3.x prior to 6.3.0r21. It is, therefore, affected by multiple vulnerabilities :

- A backdoor exists that allows a remote attacker administrative access to the device over SSH or telnet.
(CVE-2015-7755)

- An unspecified flaw exists that allows a man-in-the-middle attacker to decrypt VPN traffic.
(CVE-2015-7756)

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

Solution

Upgrade to Juniper ScreenOS 6.2.0r19 / 6.3.0r21 or later.
Alternatively, apply the appropriate patch referenced in the vendor advisory.

Plugin Details

Severity: Critical

ID: 87507

File Name: screenos_JSA10713.nasl

Version: 1.14

Type: local

Family: Firewalls

Published: 12/18/2015

Updated: 10/2/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

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

CVSS Score Source: CVE-2015-7755

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

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

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: 12/17/2015

Vulnerability Publication Date: 12/17/2015

CISA Known Exploited Vulnerability Due Dates: 10/23/2025

Reference Information

CVE: CVE-2015-7755, CVE-2015-7756

BID: 79626

CERT: 640184

JSA: JSA10713

Detections

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