Juniper Junos OS Vulnerability (JSA11179)

high Nessus Plugin ID 151635

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA11179 advisory.

- On Juniper Networks Junos OS Evolved devices where ntp is enabled a crafted malicious authenticated mode 6 packet from a permitted network address can trigger a NULL pointer dereference. Note for this attack to work, the sending system must be on an address from which the target ntpd accepts mode 6 packets, and must use a private key that is specifically listed as being used for mode 6 authorization. The ntpd daemon can crash due to the NULL pointer dereference, causing a Denial of Service (DoS). (CVE-2019-8936)

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

Solution

Apply the relevant Junos software release referenced in Juniper advisory JSA11179

Plugin Details

Severity: High

ID: 151635

File Name: juniper_jsa11179.nasl

Version: 1.2

Type: combined

Family: Junos Local Security Checks

Published: 7/14/2021

Updated: 7/14/2021

Supported Sensors: Nessus

Risk Information

CVSS v2

Risk Factor: Medium

Base Score: 5

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

CVSS Score Source: CVE-2019-8936

CVSS v3

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/JUNOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2021

Vulnerability Publication Date: 7/14/2021

Reference Information

JSA: JSA11179

Detections

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