CVE-2020-1684 : Exploit Details and Defense Strategies

This CVE involves a vulnerability in Junos OS on SRX Series devices that can lead to high CPU load due to specific HTTP traffic when Application Identification is enabled.

Understanding CVE-2020-1684

This vulnerability affects certain versions of Juniper Networks Junos OS on SRX Series.

What is CVE-2020-1684?

The vulnerability on SRX Series devices with application identification enabled can cause a high CPU load due to specific HTTP traffic, potentially resulting in traffic interruption.

The Impact of CVE-2020-1684

The vulnerability can lead to high CPU load utilization, affecting the availability of network traffic.

Technical Details of CVE-2020-1684

This section provides detailed technical information on the CVE.

Vulnerability Description

Receipt of specific HTTP traffic on Juniper SRX Series with enabled application identification causes high CPU load.

Affected Systems and Versions

Versions affected include 12.3X48-D105, 15.1X49-D221, 15.1X49-D230, and more prior releases.

Exploitation Mechanism

Juniper SIRT confirmed no known malicious exploitation of this vulnerability.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE.

Immediate Steps to Take

Disable application identification using CLI commands.
Check if application identification is enabled using the provided CLI command.

Long-Term Security Practices

Apply recommended software updates and patches promptly.

Patching and Updates

Update to the patched software releases like Junos OS 12.3X48-D105, and newer versions to resolve the issue.