CVE-2020-4076
Electron Context Isolation Bypass
Description
In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using contextIsolation are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.
INFO
Published Date :
July 7, 2020, 12:15 a.m.
Last Modified :
July 13, 2020, 7:48 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.8
Exploitability Score :
2.5
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-2020-4076.
| URL | Resource |
|---|---|
| https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79 | Third Party Advisory |
| https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824 | Release Notes 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-2020-4076 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-4076 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]
Jul. 13, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N Changed Reference Type https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79 No Types Assigned https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79 Third Party Advisory Changed Reference Type https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824 No Types Assigned https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824 Release Notes, Vendor Advisory Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.2.4 *cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.2.4 *cpe:2.3:a:electronjs:electron:9.0.0:-:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta1:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta10:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta11:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta12:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta13:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta14:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta15:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta16:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta17:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta18:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta19:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta2:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta20:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta3:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta4:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta5:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta6:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta7:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta8:*:*:*:*:*:* *cpe:2.3:a:electronjs:electron:9.0.0:beta9:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 07, 2020
Action Type Old Value New Value Changed Description In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using contextIsolation are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4. In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using contextIsolation are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-4076 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-2020-4076
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.01%
score
0.28248
percentile