Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-39184

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
12/10/2021
Last modified:
05/08/2022

Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. A vulnerability in versions prior to 11.5.0, 12.1.0, and 13.3.0 allows a sandboxed renderer to request a "thumbnail" image of an arbitrary file on the user's system. The thumbnail can potentially include significant parts of the original file, including textual data in many cases. Versions 15.0.0-alpha.10, 14.0.0, 13.3.0, 12.1.0, and 11.5.0 all contain a fix for the vulnerability. Two workarounds aside from upgrading are available. One may make the vulnerability significantly more difficult for an attacker to exploit by enabling `contextIsolation` in one's app. One may also disable the functionality of the `createThumbnailFromPath` API if one does not need it.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 8.60 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
8.60
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:* 10.1.0 (including) 11.5.0 (excluding)
cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:* 12.0.0 (including) 12.1.0 (excluding)
cpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:* 13.0.0 (including) 13.3.0 (excluding)
cpe:2.3:a:electronjs:electron:14.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta10:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta11:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta12:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta13:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta14:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta15:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta16:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta17:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta18:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta19:*:*:*:*:*:*
cpe:2.3:a:electronjs:electron:14.0.0:beta2:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools