6.5
MEDIUM
CVE-2019-17023
Firefox TLS State Machine Invalid Transition Protocol Downgrade Vulnerability
Description

After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. This vulnerability affects Firefox < 72.

INFO

Published Date :

Jan. 8, 2020, 10:15 p.m.

Last Modified :

Jan. 27, 2023, 6:24 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2019-17023 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2019-17023 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 Mozilla firefox
1 Canonical ubuntu_linux
1 Debian debian_linux
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-2019-17023.

URL Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1590001 Issue Tracking Permissions Required
https://usn.ubuntu.com/4234-1/ Third Party Advisory
https://usn.ubuntu.com/4397-1/ Third Party Advisory
https://www.debian.org/security/2020/dsa-4726 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-01/ Vendor Advisory

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).

Map Vulnerabilities into Different Layers of the Container Image

Python

Updated: 1 year, 10 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 5, 2022, 12:07 p.m. This repo has been linked 1276 different CVEs too.

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

The following list is the news that have been mention CVE-2019-17023 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-17023 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 [email protected]

    May. 14, 2024

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

    Jan. 27, 2023

    Action Type Old Value New Value
    Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1590001 Permissions Required https://bugzilla.mozilla.org/show_bug.cgi?id=1590001 Issue Tracking, Permissions Required
    Changed Reference Type https://usn.ubuntu.com/4397-1/ No Types Assigned https://usn.ubuntu.com/4397-1/ Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2020/dsa-4726 No Types Assigned https://www.debian.org/security/2020/dsa-4726 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 18, 2020

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2020/dsa-4726 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 26, 2020

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4397-1/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 13, 2020

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1590001 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1590001 Permissions Required
    Changed Reference Type https://usn.ubuntu.com/4234-1/ No Types Assigned https://usn.ubuntu.com/4234-1/ Third Party Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2020-01/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2020-01/ Vendor Advisory
    Added CWE NIST CWE-287
    Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 72.0
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jan. 10, 2020

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4234-1/ [No Types Assigned]
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-17023 is associated with the following CWEs:

Exploit Prediction

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

0.22 }} -0.09%

score

0.59397

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability