CVE-2018-0004 : Exploit Details and Defense Strategies
Learn about CVE-2018-0004, a denial of service vulnerability in Junos OS triggered by high CPU consumption. Find out affected systems, exploitation details, and mitigation steps.
A denial of service vulnerability in Junos OS can be triggered by a specific command, leading to high CPU consumption and affecting system processes and traffic forwarding.
Understanding CVE-2018-0004
This CVE involves a vulnerability in Junos OS that can result in a denial of service condition due to high CPU consumption.
What is CVE-2018-0004?
A continuous series of normal transit traffic can cause a denial of service situation in Junos OS, impacting CPU consumption and system processes.
The Impact of CVE-2018-0004
- The vulnerability can lead to high CPU consumption, affecting both the forwarding and control plane of the device.
- The device may become inaccessible and stop forwarding traffic until rebooted.
Technical Details of CVE-2018-0004
This section provides detailed technical information about the vulnerability.
Vulnerability Description
- Triggered by specific commands, the vulnerability causes high CPU consumption in Junos OS, affecting system processes and traffic forwarding.
Affected Systems and Versions
- Junos OS versions prior to 12.1X46-D50, 12.3X48-D30, 12.3R12-S7, 14.1R8-S4, 14.1R9, 14.1X53-D30, 14.1X53-D34, 14.2R8, 15.1F6, 15.1R3, 15.1X49-D40, 15.1X53-D31, 15.1X53-D33, 15.1X53-D60 are affected.
Exploitation Mechanism
- A sustained sequence of normal transit traffic triggers the vulnerability, causing a denial of service condition with high CPU consumption.
Mitigation and Prevention
Learn how to mitigate and prevent the CVE-2018-0004 vulnerability.
Immediate Steps to Take
- Update to the following software releases: 12.1X46-D50, 12.3R12-S7, 12.3X48-D30, 14.1R8-S4, 14.1R9, 14.1X53-D30, 14.1X53-D34, 14.2R8, 15.1F6, 15.1R3, 15.1X49-D40, 15.1X53-D31, 15.1X53-D33, 15.1X53-D60, 16.1R1, and all subsequent releases.
Long-Term Security Practices
- Regularly update Junos OS to the latest versions to ensure protection against known vulnerabilities.
Patching and Updates
- Apply patches and updates provided by Juniper Networks to address the CVE-2018-0004 vulnerability.