CWE
254
Advisory Published
Updated

CVE-2016-5117

First published: Tue Jan 31 2017(Updated: )

OpenNTPD before 6.0p1 does not validate the CN for HTTPS constraint requests, which allows remote attackers to bypass the man-in-the-middle mitigations via a crafted timestamp constraint with a valid certificate.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Openntpd Openntpd<=6.0

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Frequently Asked Questions

  • What is the severity of CVE-2016-5117?

    CVE-2016-5117 is considered a medium severity vulnerability due to its potential to allow man-in-the-middle attacks on HTTPS constraint requests.

  • How do I fix CVE-2016-5117?

    To fix CVE-2016-5117, upgrade OpenNTPD to version 6.0p1 or later, where the vulnerability is addressed.

  • What type of vulnerability is CVE-2016-5117?

    CVE-2016-5117 is a security vulnerability that involves improper validation of HTTPS constraint requests.

  • Which versions of OpenNTPD are affected by CVE-2016-5117?

    OpenNTPD versions prior to 6.0p1 are affected by CVE-2016-5117.

  • Who can exploit CVE-2016-5117?

    CVE-2016-5117 can be exploited by remote attackers to bypass HTTPS man-in-the-middle mitigations.

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