What is CVE-2021-34422?

CVE-2021-34422 is a path traversal vulnerability in the Keybase Client for Windows before version 5.7.0.

How does CVE-2021-34422 affect Keybase Client?

CVE-2021-34422 allows a malicious user to upload a file with a specially crafted name to a shared folder, potentially enabling the execution of an application.

What is the severity of CVE-2021-34422?

CVE-2021-34422 has a severity rating of critical with a value of 9.

How can I fix the CVE-2021-34422 vulnerability?

To fix the CVE-2021-34422 vulnerability, upgrade your Keybase Client for Windows to version 5.7.0 or later.

Is there any additional information available about CVE-2021-34422?

Yes, you can find more information about CVE-2021-34422 in the following reference: https://explore.zoom.us/en/trust/security/security-bulletin

Vulnerability/
CVE-2021-34422

critical

CWE

11/11/2021

17/9/2024

CVE-2021-34422: Path traversal of file names in Keybase Client for Windows

First published: Thu Nov 11 2021(Updated: )

The Keybase Client for Windows before version 5.7.0 contains a path traversal vulnerability when checking the name of a file uploaded to a team folder. A malicious user could upload a file to a shared folder with a specially crafted file name which could allow a user to execute an application which was not intended on their host machine. If a malicious user leveraged this issue with the public folder sharing feature of the Keybase client, this could lead to remote code execution.

Credit: security@zoom.us

Affected Software	Affected Version	How to fix
Keybase Keybase	<5.7.0

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Reference Links

https://explore.zoom.us/en/trust/security/security-bulletin

Frequently Asked Questions

What is CVE-2021-34422?
CVE-2021-34422 is a path traversal vulnerability in the Keybase Client for Windows before version 5.7.0.
How does CVE-2021-34422 affect Keybase Client?
CVE-2021-34422 allows a malicious user to upload a file with a specially crafted name to a shared folder, potentially enabling the execution of an application.
What is the severity of CVE-2021-34422?
CVE-2021-34422 has a severity rating of critical with a value of 9.
How can I fix the CVE-2021-34422 vulnerability?
To fix the CVE-2021-34422 vulnerability, upgrade your Keybase Client for Windows to version 5.7.0 or later.
Is there any additional information available about CVE-2021-34422?
Yes, you can find more information about CVE-2021-34422 in the following reference: https://explore.zoom.us/en/trust/security/security-bulletin

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