How does CVE-2020-12456 impact Mitel MiVoice Connect Client?

CVE-2020-12456 allows an attacker to execute arbitrary code in the chat notification window of Mitel MiVoice Connect Client, potentially leading to session cookie theft and other unauthorized actions.

What is the severity of CVE-2020-12456?

CVE-2020-12456 has a severity rating of 8.8 (high).

How can I fix CVE-2020-12456?

To fix CVE-2020-12456, it is recommended to update Mitel MiVoice Connect Client to version 214.100.1223.0 or later, which addresses the vulnerability.

Where can I find more information about CVE-2020-12456?

You can find more information about CVE-2020-12456 on Mitel's support website. Please refer to the following link: [https://www.mitel.com/support/security-advisories](https://www.mitel.com/support/security-advisories)

Vulnerability/
CVE-2020-12456

high

8.8

CWE

26/8/2020

4/8/2024

CVE-2020-12456: Path Traversal

Q: What is CVE-2020-12456?

CVE-2020-12456 is a remote code execution vulnerability in Mitel MiVoice Connect Client before version 214.100.1223.0.

First published: Wed Aug 26 2020(Updated: )

A remote code execution vulnerability in Mitel MiVoice Connect Client before 214.100.1223.0 could allow an attacker to execute arbitrary code in the chat notification window, due to improper rendering of chat messages. A successful exploit could allow an attacker to steal session cookies, perform directory traversal, and execute arbitrary scripts in the context of the Connect client.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Mitel MiVoice Connect	<214.100.1223.0

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Frequently Asked Questions

What is CVE-2020-12456?
CVE-2020-12456 is a remote code execution vulnerability in Mitel MiVoice Connect Client before version 214.100.1223.0.
How does CVE-2020-12456 impact Mitel MiVoice Connect Client?
CVE-2020-12456 allows an attacker to execute arbitrary code in the chat notification window of Mitel MiVoice Connect Client, potentially leading to session cookie theft and other unauthorized actions.
What is the severity of CVE-2020-12456?
CVE-2020-12456 has a severity rating of 8.8 (high).
How can I fix CVE-2020-12456?
To fix CVE-2020-12456, it is recommended to update Mitel MiVoice Connect Client to version 214.100.1223.0 or later, which addresses the vulnerability.
Where can I find more information about CVE-2020-12456?
You can find more information about CVE-2020-12456 on Mitel's support website. Please refer to the following link: [https://www.mitel.com/support/security-advisories](https://www.mitel.com/support/security-advisories)

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