medium
5.5
CWE
22
Advisory Published
CVE Published
Updated

CVE-2021-1815: Path Traversal

First published: Mon Apr 26 2021(Updated: )

A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A local user may be able to modify protected parts of the file system.

Credit: Zhipeng Huo @R3dF09 Yuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Yuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Yuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Yuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Yuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Yuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Tencent Security Xuanwu LabYuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Tencent Security Xuanwu LabYuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Tencent Security Xuanwu LabYuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Yuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Yuebin Sun @yuebinsun2020 Tencent Security Xuanwu LabZhipeng Huo @R3dF09 Yuebin Sun @yuebinsun2020 Tencent Security Xuanwu Lab product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple tvOS<14.5
14.5
Apple macOS Big Sur<11.3
11.3
Apple iPadOS<14.5
Apple iPhone OS<14.5
Apple macOS>=11.0<11.3
Apple tvOS<14.5
Apple watchOS<7.4

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2021-1815?

    CVE-2021-1815 is a vulnerability in Apple software that relates to a parsing issue in the handling of directory paths.

  • Which Apple products are affected by CVE-2021-1815?

    Apple iOS, iPadOS, watchOS, macOS Big Sur, and tvOS versions up to and including 14.5, 7.4, 11.3, 14.5, and 14.5 respectively are affected.

  • What is the severity of CVE-2021-1815?

    The severity of CVE-2021-1815 is not mentioned in the provided information.

  • How can I fix CVE-2021-1815?

    To fix CVE-2021-1815, update your Apple software to the recommended versions mentioned in the provided references.

  • Where can I find more information about CVE-2021-1815?

    You can find more information about CVE-2021-1815 in the provided references: [Link 1](https://support.apple.com/en-us/HT212317), [Link 2](https://support.apple.com/en-us/HT212324), [Link 3](https://support.apple.com/en-us/HT212325)

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