PT-2020-17864 · Github · Electron

Marshallofsound · Published 2020-07-07 · Updated 2020-07-13 · CVE-2020-4075

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Electron versions prior to 7.2.4 Electron versions prior to 8.2.4 Electron versions prior to 9.0.0-beta21

Description The issue allows for arbitrary local file read by defining unsafe window options on a child window opened via window.open. To mitigate this, ensure that event.preventDefault() is called on all new-window events where the url or options is not expected.

Recommendations For versions prior to 7.2.4, 8.2.4, and 9.0.0-beta21, update to version 7.2.4, 8.2.4, or 9.0.0-beta21 respectively to resolve the issue. As a temporary workaround, consider calling event.preventDefault() on all new-window events where the url or options is not something you expect.

Fix

Files Accessible to External Parties

Weakness Enumeration

CWE-552

Related Identifiers

CVE-2020-4075

GHSA-F9MQ-JPH6-9MHM

Affected Products

Electron

References · 6

• https://electronjs.org/releases/stable?page=3#release-notes-for-v824 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-4075 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-4075 · Security Note
• https://osv.dev/vulnerability/GHSA-f9mq-jph6-9mhm · Vendor Advisory
• https://github.com/electron/electron/security/advisories/GHSA-f9mq-jph6-9mhm · Note
• https://t.me/cvenotify/4890 · Telegram Post