CVE-2020-1613 : Security Advisory and Response

This CVE article provides details about a vulnerability in Juniper Networks Junos OS that may lead to BGP session termination due to a specific BGP FlowSpec advertisement.

Understanding CVE-2020-1613

This CVE pertains to a vulnerability in Juniper Networks Junos OS that could result in the termination of a BGP session upon receiving a particular BGP FlowSpec advertisement.

What is CVE-2020-1613?

The vulnerability in the BGP FlowSpec implementation could cause a Junos OS device to terminate an established BGP session when a specific BGP FlowSpec advertisement is received.

The Impact of CVE-2020-1613

The vulnerability could lead to BGP session disruption and termination within affected versions of Junos OS, affecting devices using BGP FlowSpec configuration.

Technical Details of CVE-2020-1613

This section outlines the technical aspects of the CVE.

Vulnerability Description

The vulnerability in the BGP FlowSpec implementation triggers an established BGP session termination upon receipt of a specific BGP FlowSpec advertisement.

Affected Systems and Versions

Junos OS versions: 12.3, 14.1X53, and multiple custom versions prior to specified releases for different platforms.

Exploitation Mechanism

The issue arises when a Junos OS device receives a specific BGP FlowSpec advertisement, leading to the termination of the BGP session.

Mitigation and Prevention

Understand the steps to mitigate and prevent exploitation of CVE-2020-1613.

Immediate Steps to Take

Apply the provided software updates to resolve the issue as per the Juniper Networks advisory.

Long-Term Security Practices

Regularly update Junos OS to the latest available version to ensure system security.

Patching and Updates

Update to the fixed software releases including 15.1R7-S5, 15.1F6-S13, 15.1X49-D180, and other subsequent releases.