CVE-2021-21125: Insufficient policy enforcement in File System API

Published Nov 24, 2020
·
Updated

Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.

Credit

Ron Masas (Imperva)

Affected Software

3 affected componentsFixes available
Google Chrome<88.0.4324.96
88.0.4324.96
Google Chrome<88.0.4324.96
Microsoft Edge Chromium<88.0.705.50

Event History

Nov 24, 2020
CVE Published
12:00 AM
Feb 9, 2021
CVE Published
via MITRE·01:56 PM
Data Sourced
via MITRE·01:56 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2021-21125?

CVE-2021-21125 is considered a high severity vulnerability due to its potential to allow remote attackers to bypass filesystem restrictions.

2

How do I fix CVE-2021-21125?

To fix CVE-2021-21125, update Google Chrome to version 88.0.4324.96 or later.

3

What versions of Chrome are affected by CVE-2021-21125?

CVE-2021-21125 affects Google Chrome versions prior to 88.0.4324.96.

4

Can CVE-2021-21125 also affect Microsoft Edge Chromium?

Yes, CVE-2021-21125 can also affect Microsoft Edge Chromium versions prior to 88.0.705.50.

5

What types of attacks can leverage CVE-2021-21125?

Attackers can leverage CVE-2021-21125 by using crafted HTML pages to bypass filesystem restrictions.

Contact

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