9.8
CRITICAL
CVE-2021-29978
Mozilla VPN Information Disclosure Vulnerability
Description

Multiple low security issues were discovered and fixed in a security audit of Mozilla VPN 2.x branch as part of a 3rd party security audit. This vulnerability affects Mozilla VPN < 2.3.

INFO

Published Date :

Aug. 5, 2021, 8:15 p.m.

Last Modified :

Aug. 13, 2021, 1:12 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-29978 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 vpn
2 Mozilla mozilla_vpn
References to Advisories, Solutions, and Tools

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-2021-29978 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-29978 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
  • Initial Analysis by [email protected]

    Aug. 13, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    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/mozilla-mobile/mozilla-vpn-client/issues/797 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/797 Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/798 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/798 Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/799 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/799 Exploit, Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/800 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/800 Exploit, Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/801 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/801 Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/803 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/803 Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/804 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/804 Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/805 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/805 Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/806 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/806 Exploit, Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/808 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/808 Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/809 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/809 Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/810 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/810 Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/issues/812 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/issues/812 Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/mozilla-vpn-client/pull/816 No Types Assigned https://github.com/mozilla-mobile/mozilla-vpn-client/pull/816 Patch, Third Party Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-31/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-31/ Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:a:mozilla:mozilla_vpn:*:*:*:*:*:*:*:* versions from (including) 2.0 up to (excluding) 2.3
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-2021-29978 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-2021-29978 weaknesses.

Exploit Prediction

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

1.42 }} 0.07%

score

0.86344

percentile

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