Electron up to 7.2.3/8.2.3/9.0.0-beta20 event.preventDefault url/options file access

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Electron up to 7.2.3/8.2.3/9.0.0-beta20. It has been classified as problematic. This affects the function event.preventDefault. This manipulation of the argument url/options causes file access. This vulnerability is tracked as CVE-2020-4075. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Electron up to 7.2.3/8.2.3/9.0.0-beta20. It has been declared as problematic. Affected by this vulnerability is the function event.preventDefault. The manipulation of the argument url/options with an unknown input leads to a file access vulnerability. The CWE definition for the vulnerability is CWE-552. The product makes files or directories accessible to unauthorized actors, even though they should not be. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

The weakness was disclosed 07/07/2020 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2020-4075 since 12/30/2019. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1083 according to MITRE ATT&CK.

Upgrading to version 7.2.4, 8.2.4 or 9.0.0-beta21 eliminates this vulnerability.

The entries VDB-157689 and VDB-157688 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.0
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: File access
CWE: CWE-552 / CWE-425
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Electron 7.2.4/8.2.4/9.0.0-beta21

Timelineinfo

12/30/2019 🔍
07/07/2020 +190 days 🔍
07/07/2020 +0 days 🔍
10/28/2020 +113 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-4075 (🔍)
GCVE (CVE): GCVE-0-2020-4075
GCVE (VulDB): GCVE-100-157687
See also: 🔍

Entryinfo

Created: 07/07/2020 09:50
Updated: 10/28/2020 21:51
Changes: 07/07/2020 09:50 (40), 07/07/2020 09:55 (11), 10/28/2020 21:45 (1), 10/28/2020 21:51 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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