CVE Vulnerabilities

CVE-2020-4075

Files or Directories Accessible to External Parties

Published: Jul 07, 2020 | Modified: Jul 13, 2020
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, arbitrary local file read is possible by defining unsafe window options on a child window opened via window.open. As a workaround, ensure you are calling event.preventDefault() on all new-window events where the url or options is not something you expect. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.

Weakness

The product makes files or directories accessible to unauthorized actors, even though they should not be.

Affected Software

Name Vendor Start Version End Version
Electron Electronjs 7.0.0 (including) 7.2.4 (excluding)
Electron Electronjs 8.0.0 (including) 8.2.4 (excluding)
Electron Electronjs 9.0.0 (including) 9.0.0 (including)
Electron Electronjs 9.0.0-beta1 (including) 9.0.0-beta1 (including)
Electron Electronjs 9.0.0-beta10 (including) 9.0.0-beta10 (including)
Electron Electronjs 9.0.0-beta11 (including) 9.0.0-beta11 (including)
Electron Electronjs 9.0.0-beta12 (including) 9.0.0-beta12 (including)
Electron Electronjs 9.0.0-beta13 (including) 9.0.0-beta13 (including)
Electron Electronjs 9.0.0-beta14 (including) 9.0.0-beta14 (including)
Electron Electronjs 9.0.0-beta15 (including) 9.0.0-beta15 (including)
Electron Electronjs 9.0.0-beta16 (including) 9.0.0-beta16 (including)
Electron Electronjs 9.0.0-beta17 (including) 9.0.0-beta17 (including)
Electron Electronjs 9.0.0-beta18 (including) 9.0.0-beta18 (including)
Electron Electronjs 9.0.0-beta19 (including) 9.0.0-beta19 (including)
Electron Electronjs 9.0.0-beta2 (including) 9.0.0-beta2 (including)
Electron Electronjs 9.0.0-beta20 (including) 9.0.0-beta20 (including)
Electron Electronjs 9.0.0-beta3 (including) 9.0.0-beta3 (including)
Electron Electronjs 9.0.0-beta4 (including) 9.0.0-beta4 (including)
Electron Electronjs 9.0.0-beta5 (including) 9.0.0-beta5 (including)
Electron Electronjs 9.0.0-beta6 (including) 9.0.0-beta6 (including)
Electron Electronjs 9.0.0-beta7 (including) 9.0.0-beta7 (including)
Electron Electronjs 9.0.0-beta8 (including) 9.0.0-beta8 (including)
Electron Electronjs 9.0.0-beta9 (including) 9.0.0-beta9 (including)

Extended Description

Web servers, FTP servers, and similar servers may store a set of files underneath a “root” directory that is accessible to the server’s users. Applications may store sensitive files underneath this root without also using access control to limit which users may request those files, if any. Alternately, an application might package multiple files or directories into an archive file (e.g., ZIP or tar), but the application might not exclude sensitive files that are underneath those directories. In cloud technologies and containers, this weakness might present itself in the form of misconfigured storage accounts that can be read or written by a public or anonymous user.

Potential Mitigations

References