Vulnerability CVE-2019-20786
Published: 2020-04-19

Description:
handleIncomingPacket in conn.go in Pion DTLS before 1.5.2 lacks a check for application data with epoch 0, which allows remote attackers to inject arbitrary unencrypted data after handshake completion.

Type:

CWE-287

 (Improper Authentication)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
PION -> DTLS 

 References:
https://github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0
https://github.com/pion/dtls/compare/v1.5.1...v1.5.2
https://www.usenix.org/conference/usenixsecurity20/presentation/fiterau-brostean
https://www.usenix.org/system/files/sec20fall_fiterau-brostean_prepub.pdf
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