6.5
MEDIUM
CVE-2021-23982
Firefox/Thunderbird WebRTC Host and Service Scanner Vulnerability
Description

Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

INFO

Published Date :

March 31, 2021, 2:15 p.m.

Last Modified :

Aug. 6, 2021, 6:19 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-23982 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
2 Mozilla firefox_esr
3 Mozilla thunderbird
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-2021-23982.

URL Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1677046 Issue Tracking Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-10/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-11/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-12/ 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).

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

The following list is the news that have been mention CVE-2021-23982 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-23982 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]

    Aug. 06, 2021

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

    Jun. 24, 2021

    Action Type Old Value New Value
    Changed Description Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < 78.9, Thunderbird < 78.9, and Firefox < 87. Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
    Removed Reference https://security.gentoo.org/glsa/202104-09 [Third Party Advisory]
    Removed Reference https://security.gentoo.org/glsa/202104-10 [Third Party Advisory]
  • Modified Analysis by [email protected]

    Jun. 03, 2021

    Action Type Old Value New Value
    Changed Reference Type https://security.gentoo.org/glsa/202104-09 No Types Assigned https://security.gentoo.org/glsa/202104-09 Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/202104-10 No Types Assigned https://security.gentoo.org/glsa/202104-10 Third Party Advisory
  • CVE Modified by [email protected]

    May. 01, 2021

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202104-09 [No Types Assigned]
    Added Reference https://security.gentoo.org/glsa/202104-10 [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 05, 2021

    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=1677046 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1677046 Issue Tracking, Vendor Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-10/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-10/ Vendor Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-11/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-11/ Vendor Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-12/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-12/ Vendor Advisory
    Added CWE NIST CWE-326
    Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 87.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 78.9 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 78.9
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-2021-23982 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-2021-23982 weaknesses.

Exploit Prediction

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

0.12 }} 0.02%

score

0.46724

percentile

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