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9.8
CRITICAL CVSS 3.1
CVE-2019-20786
Pion DTLS MiTM(datas)
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.

INFO

Published Date :

April 19, 2020, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 4:39 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2019-20786 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Pion dtls
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.1 CRITICAL [email protected]
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-20786.

URL Resource
https://github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0 Patch Third Party Advisory
https://github.com/pion/dtls/compare/v1.5.1...v1.5.2 Patch Third Party Advisory
https://www.usenix.org/conference/usenixsecurity20/presentation/fiterau-brostean Third Party Advisory
https://www.usenix.org/system/files/sec20fall_fiterau-brostean_prepub.pdf Exploit Third Party Advisory
https://github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0 Patch Third Party Advisory
https://github.com/pion/dtls/compare/v1.5.1...v1.5.2 Patch Third Party Advisory
https://www.usenix.org/conference/usenixsecurity20/presentation/fiterau-brostean Third Party Advisory
https://www.usenix.org/system/files/sec20fall_fiterau-brostean_prepub.pdf Exploit Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-20786 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-20786 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-20786 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2019-20786 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0
    Added Reference https://github.com/pion/dtls/compare/v1.5.1...v1.5.2
    Added Reference https://www.usenix.org/conference/usenixsecurity20/presentation/fiterau-brostean
    Added Reference https://www.usenix.org/system/files/sec20fall_fiterau-brostean_prepub.pdf
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Apr. 23, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0 No Types Assigned https://github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0 Patch, Third Party Advisory
    Changed Reference Type https://github.com/pion/dtls/compare/v1.5.1...v1.5.2 No Types Assigned https://github.com/pion/dtls/compare/v1.5.1...v1.5.2 Patch, Third Party Advisory
    Changed Reference Type https://www.usenix.org/conference/usenixsecurity20/presentation/fiterau-brostean No Types Assigned https://www.usenix.org/conference/usenixsecurity20/presentation/fiterau-brostean Third Party Advisory
    Changed Reference Type https://www.usenix.org/system/files/sec20fall_fiterau-brostean_prepub.pdf No Types Assigned https://www.usenix.org/system/files/sec20fall_fiterau-brostean_prepub.pdf Exploit, Third Party Advisory
    Added CWE NIST CWE-287
    Added CPE Configuration OR *cpe:2.3:a:pion:dtls:*:*:*:*:*:*:*:* versions up to (excluding) 1.5.2
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 7.5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.22 }} -0.24%

score

0.78178

percentile