GitHub Advisoryadvisory · Go

GHSA-74xm-qj29-cq8p In github.com/pion/webrtc, failed DTLS certificate verification doesn't stop data channel communication

MEDIUM Published 2021-05-25 Modified 2024-05-20 Official page ↗
Aliases
CVE-2021-28681
Ecosystem
Go
Packages
github.com/pion/webrtc/v3
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-863
Reviewed
2021-05-21

Affected packages

• Go github.com/pion/webrtc/v3: < 3.0.15 → fixed in 3.0.15

Description

Impact Data channel communication was incorrectly allowed with users who have failed DTLS certificate verification. This attack requires • Attacker knows the ICE password. • Only take place during PeerConnection handshake. This attack can be detected by monitoring `PeerConnectionState` in all versions of Pion WebRTC. Patches Users should upgrade to v3.0.15. The exact patch is https://github.com/pion/webrtc/commit/545613dcdeb5dedb01cce94175f40bcbe045df2e Workarounds Users should listen for when `PeerConnectionState` changes to `PeerConnectionStateFailed`. When it enters this state users should not continue using the PeerConnection. For more information If you have any questions or comments about this advisory: • Open an issue in https://github.com/pion/webrtc • Email us at [email protected] Thank you to https://github.com/Gaukas for discovering this.

Related

Alias · CVE (1)

  • CVE-2021-28681 Pion WebRTC before 3.0.15 didn't properly tear down the DTLS Connection when certificate verification failed. vulnerability

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References