CVE-2020-1682 : Vulnerability Insights and Analysis

An input validation vulnerability exists in Juniper Networks Junos OS, allowing an attacker to crash the srxpfe process, causing a Denial of Service (DoS) through specific maintenance commands.

Understanding CVE-2020-1682

This CVE affects various platforms within Junos OS, leading to a Denial of Service (DoS) risk.

What is CVE-2020-1682?

The vulnerability allows attackers to crash the srxpfe process, resulting in a DoS by exploiting maintenance commands.

The Impact of CVE-2020-1682

Attackers can disrupt the service on affected platforms, requiring continuous execution of commands for an extended DoS condition.

Technical Details of CVE-2020-1682

This section covers the detailed technical aspects of the vulnerability.

Vulnerability Description

Input validation flaw in Juniper Networks Junos OS triggers a DoS on SRX1500, SRX4100, SRX4200, NFX150, NFX250, and vSRX platforms.

Affected Systems and Versions

Junos OS versions 15.1X49-D220, 17.4R3-S3, 18.1R3-S11, 18.2R3-S5, 18.3R2-S4, 18.3R3-S3, 18.4R2-S5, 18.4R3-S4, 19.1R3-S2, 19.2R1-S5, 19.2R3 are affected.

Exploitation Mechanism

No known malicious exploitation has been reported regarding this vulnerability.

Mitigation and Prevention

Here are the steps to protect systems against CVE-2020-1682

Immediate Steps to Take

Implement access lists or firewall filters to restrict device access to trusted hosts and administrators.

Long-Term Security Practices

Regularly update Junos OS to the fixed versions mentioned.

Patching and Updates

Ensure your software is updated to Junos OS 15.1X49-D220, 17.4R3-S3, 18.1R3-S11, 18.2R3-S5, 18.3R2-S4, 18.3R3-S3, 18.4R2-S5, 18.4R3-S4, 19.1R3-S2, 19.2R1-S5, or 19.2R3.