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CVE-2018-15387

9.8 · CRITICAL

A vulnerability in the Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass certificate validation on an affected device.

Published Oct 5, 2018CWE-20EPSS 1.10%

Overview

CVE-2018-15387 is a critical-severity vulnerability. It was published on October 5, 2018 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 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

A vulnerability in the Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass certificate validation on an affected device. The vulnerability is due to improper certificate validation. An attacker could exploit this vulnerability by supplying a system image signed with a crafted certificate to an affected device, bypassing the certificate validation. An exploit could allow an attacker to deploy a crafted system image.

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/105509Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-sd-wan-bypassRefwww.securityfocus.com/bid/105509Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-sd-wan-bypass

How CyberStrike helps

Frequently asked questions

What is CVE-2018-15387?

CVE-2018-15387 is a critical-severity vulnerability. It was published on October 5, 2018 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2018-15387?

This vulnerability has a CVSS 3.1 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-2018-15387?

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-2018-15387?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-15387 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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