CVE-2020-17448 Security feature bypass in n/a

High 7.8 Published Updated

Attackers can bypass dangerous file type execution protections in Telegram Desktop by using filenames without extensions, potentially leading to malicious file execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2020-17448?

CVE-2020-17448 is a high-severity vulnerability in n/a, published on 11 Aug 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Telegram Desktop through 2.1.13 allows a spoofed file type to bypass the Dangerous File Type Execution protection mechanism, as demonstrated by use of the chat window with a filename that lacks an extension.

Weakness: CWE-863

Which versions are affected by CVE-2020-17448?

It affects 1 product.

Products include Telegram Telegram Desktop.

How do I fix CVE-2020-17448?

Upgrade to a fixed version.

Is CVE-2020-17448 being exploited?

There is no known exploitation of CVE-2020-17448 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2020-17448, GHSA-ccch-f948-2h8c, UBUNTU-CVE-2020-17448.

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