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CVE-2018-1000155

9.8 · CRITICAL

OpenFlow version 1.0 onwards contains a Denial of Service and Improper authorization vulnerability in OpenFlow handshake: The DPID (DataPath IDentifier) in the features_reply message are inherently…

Published May 24, 2018CWE-863EPSS 1.19%

Overview

CVE-2018-1000155 is a critical-severity vulnerability. It was published on May 24, 2018 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

OpenFlow version 1.0 onwards contains a Denial of Service and Improper authorization vulnerability in OpenFlow handshake: The DPID (DataPath IDentifier) in the features_reply message are inherently trusted by the controller. that can result in Denial of Service, Unauthorized Access, Network Instability. This attack appear to be exploitable via Network connectivity: the attacker must first establish a transport connection with the OpenFlow controller and then initiate the OpenFlow handshake.

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

Refusers.sec.t-labs.tu-berlin.de/~hashkash/openflow/BrianOnosSecurityRequest.pdfRefusers.sec.t-labs.tu-berlin.de/~hashkash/openflow/BrianOnosSecurityRequest.pdf

How CyberStrike helps

Frequently asked questions

What is CVE-2018-1000155?

CVE-2018-1000155 is a critical-severity vulnerability. It was published on May 24, 2018 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

How severe is CVE-2018-1000155?

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-1000155?

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-2018-1000155?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-1000155 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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