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Client Certificates are accepted without CertificateVerify

Moderate
Sean-Der published GHSA-w45j-f832-hxvh May 16, 2022

Package

gomod Pion DTLS (Go)

Affected versions

<= v2.1.4

Patched versions

v2.1.5

Description

Impact

A DTLS Client could provide a Certificate that it doesn't posses the private key for and Pion DTLS wouldn't reject it.

This issue affects users that are using Client certificates only. The connection itself is still secure. The Certificate provided by clients can't be trusted when using a Pion DTLS server prior to v2.1.5

Patches

Upgrade to Pion DTLS v2.1.5

Workarounds

No workarounds available, upgrade to Pion DTLS v2.1.5

References

Thank you to Juho Nurminen and the Mattermost team for discovering and reporting this.

For more information

If you have any questions or comments about this advisory:

Severity

Moderate
5.9
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

CVE ID

CVE-2022-29222

Weaknesses

No CWEs