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CVE-2018-0026

4.7 · MEDIUM

After Junos OS device reboot or upgrade, the stateless firewall filter configuration may not take effect.

Published Jul 11, 2018EPSS 1.76%

Overview

CVE-2018-0026 is a medium-severity vulnerability. It was published on July 11, 2018 and has a CVSS 3.0 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 4.7, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

After Junos OS device reboot or upgrade, the stateless firewall filter configuration may not take effect. This issue can be verified by running the command: user@re0> show interfaces <interface_name> extensive | match filters" CAM destination filters: 0, CAM source filters: 0 Note: when the issue occurs, it does not show the applied firewall filter. The correct output should show the applied firewall filter, for example: user@re0> show interfaces <interface_name> extensive | match filters" CAM destination filters: 0, CAM source filters: 0 Input Filters: FIREWAL_FILTER_NAME-<interface_name> This issue affects firewall filters for every address family. Affected releases are Juniper Networks Junos OS: 15.1R4, 15.1R5, 15.1R6 and SRs based on these MRs. 15.1X8 versions prior to 15.1X8.3.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/104720Refwww.securitytracker.com/id/1041315Refkb.juniper.net/JSA10859Refwww.securityfocus.com/bid/104720Refwww.securitytracker.com/id/1041315Refkb.juniper.net/JSA10859

How CyberStrike helps

Frequently asked questions

What is CVE-2018-0026?

CVE-2018-0026 is a medium-severity vulnerability. It was published on July 11, 2018 and has a CVSS 3.0 base score of 4.7 (MEDIUM).

How severe is CVE-2018-0026?

This vulnerability has a CVSS 3.0 base score of 4.7, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-0026?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-0026?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-0026 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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