Auth bypass in Webrtc Project
CVE-2021-28681
Pion WebRTC before 3.0.15 didn't properly tear down the DTLS Connection when certificate verification failed. The PeerConnectionState was set to failed, but a user could ignore that and continue to use the PeerConnection. )A WebRTC implementation shouldn't allow the user to continue if verification has failed.)
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (50.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/pion/webrtc/issues/1708 (Exploit, Patch, Third Party Advisory)
- github.com/pion/webrtc/security/advisories/GHSA-74xm-qj29-cq8p (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-28681?
- CVE-2021-28681 is a medium-severity vulnerability in Webrtc Project, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2021-03-18.
- How severe is CVE-2021-28681?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-28681 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.