CVE-2021-1825: Input Validation

Published Apr 22, 2021
·
Updated

An input validation issue was addressed with improved input validation.

Other sources

Apple iOS and iPadOS are vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the WebKit component. A remote attacker could exploit this vulnerability using a specially-crafted URL to execute script in a victim's Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.

— IBM

Credit

Alex Camboe(Aon), Alex Camboe(Aon), Alex Camboe(Aon), Alex Camboe(Aon), Alex Camboe(Aon), Alex Camboe(Aon), Alex Camboe(Aon)

Affected Software

27 affected componentsFixes available
Apple macOS Big Sur<11.3
11.3
Apple tvOS<14.5
14.5
Apple WatchOS<7.4
7.4
Apple iCloud for Windows<12.3
12.3
IBM Cloud Pak for Security (CP4S)<=1.7.2.0
IBM Cloud Pak for Security (CP4S)<=1.7.1.0
IBM Cloud Pak for Security (CP4S)<=1.7.0.0
Apple iTunes for Windows<12.11.3
12.11.3
Apple Safari<14.1
14.1
Apple iOS<14.5
14.5
Apple iPadOS<14.5
14.5
Apple Icloud Windows<12.3
Apple Itunes Windows<12.11.3
Apple Safari<14.1
Apple iPadOS<14.5
Apple iPhone OS<14.5
Apple macOS>=11.0<11.3
Apple tvOS<14.5
Apple WatchOS<7.4
redhat/webkitgtk<2.30.0
2.30.0
alpine/webkit2gtk<2.30.0-r0
2.30.0-r0
alpine/webkit2gtk<2.30.0-r0
2.30.0-r0
alpine/webkit2gtk<2.30.0-r0
2.30.0-r0
alpine/webkit2gtk<2.30.0-r0
2.30.0-r0
alpine/webkit2gtk<2.30.0-r0
2.30.0-r0
alpine/webkit2gtk<2.30.0-r0
2.30.0-r0
alpine/webkit2gtk<2.30.0-r0
2.30.0-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apple macOS to a version that resolves this vulnerability.

    Fixed in 11.3
  2. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 14.5
  3. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 7.4
  4. Upgrade

    Upgrade Apple iCloud to a version that resolves this vulnerability.

    Fixed in 12.3
  5. Upgrade

    Upgrade iTunes to a version that resolves this vulnerability.

    Fixed in 12.11.3
  6. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 14.1
  7. Upgrade

    Upgrade Apple iOS and iPadOS to a version that resolves this vulnerability.

    Fixed in 14.5
  8. Upgrade

    Upgrade Apple iOS, iPadOS, and macOS to a version that resolves this vulnerability.

    Fixed in 14.5
  9. Upgrade

    Upgrade redhat/webkitgtk to a version that resolves this vulnerability.

    Fixed in 2.30.0
  10. Upgrade

    Upgrade alpine/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.30.0-r0
  11. Upgrade

    Upgrade iTunes for Windows to a version that resolves this vulnerability.

    Fixed in 12.11.3
  12. Upgrade

    Upgrade iCloud for Windows to a version that resolves this vulnerability.

    Fixed in 12.3
  13. Upgrade

    Upgrade macOS Big Sur to a version that resolves this vulnerability.

    Fixed in 11.3
  14. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 7.4
  15. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 14.5
  16. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 14.5

Event History

Jul 28, 2021
Data Sourced
via Red Hat·01:30 PM
DescriptionSeverityAffected Software
Sep 8, 2021
CVE Published
via IBM·12:00 AM
CVE Published
via MITRE·02:55 PM
Data Sourced
via MITRE·02:55 PM
DescriptionWeakness
Data Sourced
via NVD·03:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·03:15 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2021-1825?

CVE-2021-1825 is a vulnerability in WebKit that was addressed with improved input validation.

2

What software is affected by CVE-2021-1825?

CVE-2021-1825 affects Apple Safari 14.1, Apple iOS up to version 14.5, Apple iPadOS up to version 14.5, Apple watchOS up to version 7.4, Apple iTunes for Windows up to version 12.11.3, Apple iCloud for Windows up to version 12.3, Apple macOS Big Sur up to version 11.3, and Apple tvOS up to version 14.5.

3

What is the severity of CVE-2021-1825?

The severity of CVE-2021-1825 is not provided.

4

How can I fix CVE-2021-1825?

To fix CVE-2021-1825, update your software to the recommended versions provided by Apple.

5

Where can I find more information about CVE-2021-1825?

You can find more information about CVE-2021-1825 on the Apple support website.

Company

Resources

Contact

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