CVE-2020-1629 : Exploit Details and Defense Strategies

A race condition vulnerability on Juniper Network Junos OS devices may cause the routing protocol daemon (RPD) process to crash and restart while processing a BGP NOTIFICATION message.

Understanding CVE-2020-1629

This CVE describes a vulnerability in Juniper Networks Junos OS that could lead to the RPD daemon crashing during BGP NOTIFICATION message processing.

What is CVE-2020-1629?

CVE-2020-1629 is a race condition vulnerability that affects various versions of Juniper Networks Junos OS. The issue may result in the RPD process crashing and restarting when handling specific BGP messages.

The Impact of CVE-2020-1629

CVSS Base Score: 5.9 (Medium Severity)
Attack Vector: Network
Attack Complexity: High
Availability Impact: High
No known malicious exploits

Technical Details of CVE-2020-1629

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability involves a race condition within the RPD process, triggered by processing BGP NOTIFICATION messages.

Affected Systems and Versions

The following versions of Juniper Networks Junos OS are affected:

16.1 versions less than 16.1R7-S6
16.2 versions less than 16.2R2-S11
17.1 versions less than 17.1R2-S11, 17.1R3-S1
And more as detailed in the original description.

Exploitation Mechanism

No known malicious exploitation of this vulnerability has been reported.

Mitigation and Prevention

To address CVE-2020-1629, follow the mitigation and prevention strategies below.

Immediate Steps to Take

Update Junos OS to the recommended patched versions listed in the solution section.

Long-Term Security Practices

Regularly update Junos OS to ensure all critical vulnerabilities are addressed.

Patching and Updates

Ensure that your Juniper Networks Junos OS is updated to the following releases or newer:

16.1R7-S6, 16.2R2-S11, 17.1R2-S11, and subsequent releases.