CVE-2020-12456 Path traversal in n/a

High 8.8 Published Updated

Attackers can execute arbitrary code and steal session cookies via improper rendering of chat messages in the Mitel MiVoice Connect Client.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-12456?

CVE-2020-12456 is a high-severity path traversal vulnerability in n/a, published on 26 Aug 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-22

Which versions are affected by CVE-2020-12456?

It affects 1 product.

Products include Mitel Mivoice Connect Client.

How do I fix CVE-2020-12456?

No fix has been published for CVE-2020-12456 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-12456 being exploited?

There is no known exploitation of CVE-2020-12456 in the wild and no public exploit code.

Sources

Also known as GHSA-jrg3-99px-r4mp.

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