CWE
287
Advisory Published
Updated

CVE-2020-8236

First published: Fri Oct 30 2020(Updated: )

A wrong configuration in Nextcloud Server 19.0.1 incorrectly made the user feel the passwordless WebAuthn is also a two factor verification by asking for the PIN of the passwordless WebAuthn but not verifying it.

Credit: support@hackerone.com

Affected SoftwareAffected VersionHow to fix
Nextcloud Server<19.0.2

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Frequently Asked Questions

  • What is the severity of CVE-2020-8236?

    CVE-2020-8236 is classified as a medium severity vulnerability due to its potential to mislead users about the security of the passwordless WebAuthn implementation.

  • How do I fix CVE-2020-8236?

    To resolve CVE-2020-8236, upgrade Nextcloud Server to version 19.0.2 or later which addresses the misconfiguration.

  • What are the implications of CVE-2020-8236?

    The implications of CVE-2020-8236 include the possibility that users may incorrectly assume their passwordless authentication method is secure when it actually requires additional verification.

  • Who is affected by CVE-2020-8236?

    Users of Nextcloud Server versions prior to 19.0.2 are affected by CVE-2020-8236.

  • Does CVE-2020-8236 impact two-factor authentication?

    Yes, CVE-2020-8236 affects the user experience related to two-factor authentication by not properly verifying the WebAuthn PIN.

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