7.6
HIGH
CVE-2020-15679
Mozilla VPN OAuth Session Fixation Vulnerability
Description

An OAuth session fixation vulnerability existed in the VPN login flow, where an attacker could craft a custom login URL, convince a VPN user to login via that URL, and obtain authenticated access as that user. This issue is limited to cases where attacker and victim are sharing the same source IP and could allow the ability to view session states and disconnect VPN sessions. This vulnerability affects Mozilla VPN iOS 1.0.7 < (929), Mozilla VPN Windows < 1.2.2, and Mozilla VPN Android 1.1.0 < (1360).

INFO

Published Date :

Dec. 22, 2022, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 5:06 a.m.

Remotely Exploitable :

Yes !

Impact Score :

4.7

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2020-15679 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

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-2020-15679 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-15679 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/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9
    Added Reference https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54
    Added Reference https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b
    Added Reference https://www.mozilla.org/security/advisories/mfsa2020-48/
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Dec. 29, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
    Changed Reference Type https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9 No Types Assigned https://github.com/mozilla-mobile/guardian-vpn-android/commit/981c840276ef3aee98cf5d42993d484ee99b28d9 Patch, Third Party Advisory
    Changed Reference Type https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54 No Types Assigned https://github.com/mozilla-mobile/guardian-vpn-ios/commit/4309f5c9bd2c15cdfd39ac173665fad3f2598b54 Patch, Third Party Advisory
    Changed Reference Type https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b No Types Assigned https://github.com/mozilla-services/guardian-vpn-windows/commit/ac6f562973a83f6758cd7ab7aa313e863047d41b Patch, Third Party Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2020-48/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2020-48/ Vendor Advisory
    Added CWE NIST CWE-384
    Added CPE Configuration OR *cpe:2.3:a:mozilla:vpn:*:*:*:*:*:ipados:*:* versions from (including) 1.0.7 up to (excluding) 1.0.7_\(929\) *cpe:2.3:a:mozilla:vpn:*:*:*:*:*:iphone_os:*:* versions up to (excluding) 1.0.7_\(929\) *cpe:2.3:a:mozilla:vpn:*:*:*:*:*:android:*:* versions from (including) 1.1.0 up to (excluding) 1.1.0_\(1360\) *cpe:2.3:a:mozilla:vpn:*:*:*:*:*:windows:*:* versions up to (excluding) 1.2.2
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-15679 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.

0.15 }} 0.02%

score

0.52092

percentile

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